Surface acoustic wave device having combinable selectable electrode sub-elements

ABSTRACT

Described embodiments include a surface acoustic wave device, method, and apparatus. The device includes a piezoelectric substrate and a configurable electrode assembly. The assembly includes a plurality of spaced-apart elongated electrode sub-elements electromechanically coupled with the piezoelectric substrate. The assembly includes a first signal bus crossing each electrode sub-element of the plurality of electrode sub-elements and electrically isolated therefrom. The assembly includes a first matrix of addressable switches. Each addressable switch of the first matrix configured to electrically couple a respective electrode sub-element of the plurality of electrode sub-elements with the first signal bus. The assembly includes a second signal bus crossing each electrode sub-element of the plurality of electrode sub-elements and electrically isolated therefrom. The assembly includes a second matrix of addressable switches. Each addressable switch of the second matrix configured to electrically couple a respective electrode sub-element of the plurality of electrode sub-elements with the second signal bus.

If an Application Data Sheet (ADS) has been filed on the filing date ofthis application, it is incorporated by reference herein. Anyapplications claimed on the ADS for priority under 35 U.S.C. §§119, 120,121, or 365(c), and any and all parent, grandparent, great-grandparent,etc. applications of such applications, are also incorporated byreference, including any priority claims made in those applications andany material incorporated by reference, to the extent such subjectmatter is not inconsistent herewith.

CROSS-REFERENCE TO RELATED APPLICATIONS

The present application claims the benefit of the earliest availableeffective filing date(s) from the following listed application(s) (the“Priority Applications”), if any, listed below (e.g., claims earliestavailable priority dates for other than provisional patent applicationsor claims benefits under 35 USC §119(e) for provisional patentapplications, for any and all parent, grandparent, great-grandparent,etc. applications of the Priority Application(s)).

Priority Applications

None.

If the listings of applications provided above are inconsistent with thelistings provided via an ADS, it is the intent of the Applicant to claimpriority to each application that appears in the DomesticBenefit/National Stage Information section of the ADS and to eachapplication that appears in the Priority Applications section of thisapplication.

All subject matter of the Priority Applications and of any and allapplications related to the Priority Applications by priority claims(directly or indirectly), including any priority claims made and subjectmatter incorporated by reference therein as of the filing date of theinstant application, is incorporated herein by reference to the extentsuch subject matter is not inconsistent herewith.

SUMMARY

For example, and without limitation, an embodiment of the subject matterdescribed herein includes a surface acoustic wave device. The deviceincludes a piezoelectric substrate. The device includes a configurableelectrode assembly. The configurable electrode assembly includes aplurality of spaced-apart elongated electrode sub-elementselectromechanically coupled with the piezoelectric substrate. Theconfigurable electrode assembly includes a first signal bus proximate toeach electrode sub-element of the plurality of electrode sub-elements,and electrically isolated therefrom. The configurable electrode assemblyincludes a first matrix of addressable switches. Each addressable switchof the first matrix configured to electrically couple a respectiveelectrode sub-element of the plurality of electrode sub-elements withthe first signal bus. The configurable electrode assembly includes asecond signal bus proximate to each electrode sub-element of theplurality of electrode sub-elements, and electrically isolatedtherefrom. The configurable electrode assembly includes a second matrixof addressable switches. Each addressable switch of the second matrixconfigured to electrically couple a respective electrode sub-element ofthe plurality of electrode sub-elements with the second signal bus.

In an embodiment, the device includes a switch controller configured tooperate an addressable switch of the first matrix of addressableswitches and an addressable switch of the second matrix of addressableswitches. In an embodiment, the device includes a configuration managerconfigured to (i) receive a request for a surface acoustic wavecharacteristic, and (ii) select settings of the first and secondmatrices of addressable switches of the configurable electrode assemblyimplementing the requested surface acoustic wave characteristic. In anembodiment, the device includes a receiver configured to receive arequest for the surface acoustic wave characteristic.

For example, and without limitation, an embodiment of the subject matterdescribed herein includes a method implemented in a configurableelectrode assembly of a surface acoustic wave device. The methodincludes selecting an electrode pattern producing a requested surfaceacoustic wave characteristic in the configurable electrode assemblyhaving a plurality of spaced-apart electrode sub-elements. The methodincludes selecting settings of a first matrix of switches implementingthe selected electrode pattern in a first subset of adjacent electrodesub-elements of the plurality of electrode elements. The method includeselectrically coupling the first subset of adjacent electrodesub-elements with a first signal bus by implementing the selectedsettings of the first matrix of switches. The method includes selectingsettings of a second matrix of switches implementing the selectedelectrode pattern in a second subset of adjacent electrode sub-elementsof the plurality of electrode elements, the second subset of adjacentelectrode sub-elements not including any members of the first subset ofat least two adjacent electrode sub-elements. The method includeselectrically coupling the second subset of adjacent electrodesub-elements with a second signal bus by implementing the selectedsettings of the second matrix of switches.

In an embodiment, the method includes receiving the request for thesurface acoustic wave characteristic. In an embodiment, the methodincludes applying an input signal across the first signal bus and thesecond signal bus, and initiating surface waves on the piezoelectricsubstrate having amplitude or phase characteristics that are a functionof the first subset of at least two adjacent electrode sub-elements andthe second subset of at least two adjacent electrode sub-elements.

For example, and without limitation, an embodiment of the subject matterdescribed herein includes a surface acoustic wave device. The deviceincludes a piezoelectric substrate, an input electrode assembly, anoutput electrode assembly, and a surface wave propagating region of thepiezoelectric substrate. The input electrode assembly or the outputelectrode assembly comprises a configurable electrode assembly. Theconfigurable electrode assembly includes a plurality of spaced-apartelongated electrode sub-elements electromechanically coupled with thepiezoelectric substrate. The configurable electrode assembly includes afirst signal bus proximate to each electrode sub-element of theplurality of electrode sub-elements, and electrically isolatedtherefrom. The configurable electrode assembly includes a first matrixof addressable switches. Each addressable switch of the first matrixconfigured to electrically couple a respective electrode sub-element ofthe plurality of electrode sub-elements with the first signal bus. Theconfigurable electrode assembly includes a second signal bus proximateto each electrode sub-element of the plurality of electrodesub-elements, and electrically isolated therefrom. The configurableelectrode assembly includes a second matrix of addressable switches.Each addressable switch of the second matrix configured to electricallycouple a respective electrode sub-element of the plurality of electrodesub-elements with the second signal bus.

In an embodiment, the configurable electrode assembly includes a thirdsignal bus crossing each electrode sub-element of the plurality ofelectrode sub-elements and electrically isolated therefrom; and aground-matrix of individually addressable switches. Each addressableswitch of the ground-matrix configured to electrically couple arespective electrode sub-element of the plurality of electrodesub-elements with the third signal bus. The configurable electrodeassembly includes a switch controller configured to operate anaddressable switch of the first matrix of addressable switches and anaddressable switch of the second matrix of addressable switches. In anembodiment, the device includes a switch controller coupled to anaddressable switch of the first matrix of addressable switches and anaddressable switch of the second matrix of addressable switches of theconfigurable electrode assembly. In an embodiment, the configurableelectrode assembly includes a configuration manager configured to (i)receive a request for a device characteristic, and (ii) select settingsof the first and second matrices of addressable switches of theconfigurable electrode assembly implementing the requested devicecharacteristic. In an embodiment, the configurable electrode assemblyincludes a configuration manager configured to (i) receive a request fora device characteristic that includes at least one of a requested centerfrequency f₀, bandwidth, or transfer function, and (ii) select settingsof the first and second matrices of addressable switches of theconfigurable electrode assembly implementing the requested devicecharacteristic. In an embodiment, the device includes a library of atleast two selectable device characteristics. Each selectable filtercharacteristic of the at least two selectable device characteristicsincludes settings of the addressable switches of the configurableelectrode assembly implementing a device characteristic that includes atleast one of a requested center frequency f₀, bandwidth, or transferfunction.

For example, and without limitation, an embodiment of the subject matterdescribed herein includes an apparatus. The apparatus includes a radiofrequency interface configured to receive or transmit radio frequencysignals on a plurality of channels. The apparatus includes a radiofrequency signal processing pathway. The radio frequency signalprocessing pathway includes a configurable surface acoustic wave deviceconfigured to filter or delay the radio frequency signals on at leasttwo channels of the plurality of channels. The pathway including apiezoelectric substrate, an input electrode assembly, an outputelectrode assembly, and a surface wave propagating region of thepiezoelectric substrate. The input electrode assembly or the outputelectrode assembly comprises a configurable electrode assembly. Theconfigurable electrode assembly including a plurality of spaced-apartelongated electrode sub-elements electromechanically coupled with thepiezoelectric substrate. The configurable electrode assembly including afirst signal bus proximate to each electrode sub-element of theplurality of electrode sub-elements, and electrically isolatedtherefrom. The configurable electrode assembly including a first matrixof addressable switches. Each addressable switch of the first matrixconfigured to electrically couple a respective electrode sub-element ofthe plurality of electrode sub-elements with the first signal bus. Theconfigurable electrode assembly including a second signal bus proximateto each electrode sub-element of the plurality of electrodesub-elements, and electrically isolated therefrom. The configurableelectrode assembly including a second matrix of addressable switches.Each addressable switch of the second matrix configured to electricallycouple a respective electrode sub-element of the plurality of electrodesub-elements with the second signal bus. The configurable electrodeassembly including an apparatus specific circuit.

In an embodiment, the radio frequency signal processing pathway includesa switch controller coupled to an addressable switch of the first matrixof addressable switches and an addressable switch of the second matrixof addressable switches of the configurable electrode assembly. In anembodiment, the radio frequency signal processing pathway includes aconfiguration manager configured to (i) receive a request for a filtercharacteristic, and (ii) select settings of the first and secondmatrices of addressable switches of the configurable electrode assemblyimplementing the requested device characteristic. In an embodiment, theradio frequency signal processing pathway includes an embedded signalprocessing pathway computer system. In an embodiment, the radiofrequency signal processing pathway includes a library of at least twoselectable filter characteristics. Each selectable filter characteristicof the at least two selectable filter characteristics includes settingsof the addressable switches of the configurable electrode assemblyimplementing a filter characteristic that includes at least one of arequested center frequency f₀, bandwidth, or transfer function. In anembodiment, the apparatus specific circuitry includes an embeddedcomputer system.

For example, and without limitation, an embodiment of the subject matterdescribed herein includes a surface acoustic wave device. The surfaceacoustic wave device includes a piezoelectric substrate, an inputelectrode assembly, and an output electrode assembly. The inputelectrode assembly including a plurality of spaced-apart elongated inputelectrode sub-elements electromechanically coupled with thepiezoelectric substrate. The input electrode assembly including a firstinput signal bus proximate to each input electrode sub-element of theplurality of input electrode sub-elements, and electrically isolatedtherefrom. The input electrode assembly including a first input-matrixof addressable switches. Each addressable switch of the firstinput-matrix configured to electrically couple a respective inputelectrode sub-element of the plurality of input electrode sub-elementswith the first input signal bus. The input electrode assembly includinga second input signal bus proximate to each input electrode sub-elementof the plurality of input electrode sub-elements, and electricallyisolated therefrom. The input electrode assembly including a secondinput-matrix of addressable switches. Each addressable switch of thesecond input-matrix configured to electrically couple a respective inputelectrode sub-element of the plurality of input electrode sub-elementswith the second input signal bus. The output electrode assemblyincluding a plurality of spaced-apart elongated output electrodesub-elements electromechanically coupled with the piezoelectricsubstrate. The output electrode assembly including a first output signalbus proximate to each output electrode sub-element of the plurality ofoutput electrode sub-elements, and electrically isolated therefrom. Theoutput electrode assembly including a first output-matrix of addressableswitches. Each addressable switch of the first output-matrix setconfigured to electrically couple a respective output electrodesub-element of the plurality of output electrode sub-elements with thefirst output signal bus. The output electrode assembly including asecond output signal bus proximate to each output electrode sub-elementof the plurality of output electrode sub-elements, and electricallyisolated therefrom. The output electrode assembly including a secondoutput-matrix of addressable switches. Each addressable switch of thesecond output-matrix configured to electrically couple a respectiveoutput electrode sub-element of the plurality of input electrodesub-elements with the second output signal bus.

In an embodiment, the device includes a surface wave propagating regionof the piezoelectric substrate located in a propagation path between theinput electrode assembly and the output electrode assembly.

For example, and without limitation, an embodiment of the subject matterdescribed herein includes a method implemented in a configurableelectrode assembly of a surface acoustic wave device. The configurableelectrode assembly having a plurality of spaced-apart elongatedelectrode sub-elements electromechanically coupled with a piezoelectricsubstrate. The method includes selecting an electrode pattern producinga requested device characteristic in the configurable electrodeassembly. The method includes selecting settings of a first matrix ofaddressable switches implementing the selected electrode pattern in afirst subset of adjacent electrode sub-elements of the plurality ofelectrode sub-elements. The method includes electrically coupling thefirst subset of adjacent electrode sub-elements with a first signal busby implementing the selected settings of the first matrix of addressableswitches. The method includes selecting settings of a second matrix ofaddressable switches implementing the selected electrode pattern in asecond subset of adjacent electrode sub-elements of the plurality ofelectrode sub-elements, the second subset of at least two adjacentelectrode sub-elements not including any members of the first subset ofat least two adjacent electrode sub-elements. The method includeselectrically coupling the second subset of adjacent electrodesub-elements with a second signal bus by implementing the selectedsettings of the second matrix of addressable switches.

In an embodiment, the method includes receiving a request for the filtercharacteristic. In an embodiment, the method includes applying an inputsignal across the first signal bus and the second signal bus, andinitiating surface waves on the piezoelectric substrate having amplitudeor phase characteristics that are a function of the first subset of atleast two adjacent electrode sub-elements and the second subset of atleast two adjacent electrode sub-elements.

The foregoing summary is illustrative only and is not intended to be inany way limiting. In addition to the illustrative aspects, embodiments,and features described above, further aspects, embodiments, and featureswill become apparent by reference to the drawings and the followingdetailed description.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 illustrates an example embodiment of an environment 19 thatincludes a thin computing device 20 in which embodiments may beimplemented;

FIG. 2 illustrates an example embodiment of an environment 100 thatincludes a general-purpose computing system 110 in which embodiments maybe implemented;

FIG. 3 illustrates a surface acoustic wave device 200;

FIG. 4 illustrates an example operational flow 300;

FIG. 5 illustrates a surface acoustic wave device 400;

FIG. 6 illustrates an example operational flow 500 implemented in aconfigurable electrode assembly of a surface acoustic wave device;

FIG. 7 illustrates an example surface wave device 600;

FIG. 8 illustrates an example surface acoustic wave device 700;

FIG. 9 illustrates an embodiment 800 of the surface wave device 600 ofFIG. 8;

FIG. 10 illustrates an example operational flow 800 implemented in aconfigurable electrode assembly of a surface acoustic wave device;

FIG. 11 illustrates a surface acoustic wave device 900;

FIG. 12 illustrates an example operational flow 1000 implemented in aconfigurable electrode assembly of a surface acoustic wave device;

FIG. 13 illustrates an example surface acoustic wave device 1100;

FIG. 14 illustrates an example surface acoustic wave device 1200;

FIG. 15 illustrates an example operational flow 1300 implemented in aconfigurable electrode assembly of a surface acoustic wave device;

FIG. 16 illustrates an example surface acoustic wave device 1400

FIG. 17 illustrates a surface acoustic wave device 1500;

FIG. 18 illustrates an example surface acoustic wave device 1600;

FIG. 19 illustrates an exemplary operational flow 1700 implemented in aconfigurable electrode assembly of a surface acoustic wave device;

FIG. 20 illustrates an apparatus 1800;

FIG. 21 illustrates an apparatus 1900; and

FIG. 22 illustrates an apparatus 2000.

DETAILED DESCRIPTION

This application makes reference to technologies described more fully inU.S. patent application Ser. No. 14/539,031, entitled SURFACE ACOUSTICWAVE DEVICE HAVING SELECTABLE ELECTRODE ELEMENTS, naming Jordin T. Kareas inventor, filed on Nov. 12, 2014, published as U.S. PatentApplication Publication No. US 2016/0134256 on May 12, 2016, and issuedas U.S. Pat. No. 9,602,077 on Mar. 21, 2017, which is related to thepresent application. That application is incorporated by referenceherein, including any subject matter included by reference in thatapplication.

This application makes reference to technologies described more fully inU.S. patent application Ser. No. 14/539,071, entitled SURFACE ACOUSTICWAVE DEVICE HAVING MATRICES OF COMBINABLE SELECTABLE ELECTRODESUB-ELEMENTS, naming Jordin T. Kare as inventor, filed on Nov. 12, 2014,and published as U.S. Patent Application Publication No. US 2016/0133821on May 12, 2016, which is related to the present application. Thatapplication is incorporated by reference herein, including any subjectmatter included by reference in that application.

This application makes reference to technologies described more fully inU.S. patent application Ser. No. 14/539,091, entitled SURFACE ACOUSTICWAVE DEVICE HAVING END-TO END COMBINABLE SELECTABLE ELECTRODESUB-ELEMENTS, naming Jordin T. Kare as inventor, filed on Nov. 12, 2014,published as U.S. Patent Application Publication No. US 2016/0134257 onMay 12, 2016, and issued as U.S. Pat. No. 9,571,065 on Feb. 24, 2017,which is related to the present application. That application isincorporated by reference herein, including any subject matter includedby reference in that application.

In the following detailed description, reference is made to theaccompanying drawings, which form a part hereof. In the drawings,similar symbols typically identify similar components, unless contextdictates otherwise. The illustrative embodiments described in thedetailed description, drawings, and claims are not meant to be limiting.Other embodiments may be utilized, and other changes may be made,without departing from the spirit or scope of the subject matterpresented here.

Those having skill in the art will recognize that the state of the arthas progressed to the point where there is little distinction leftbetween hardware, software, and/or firmware implementations of aspectsof systems; the use of hardware, software, and/or firmware is generally(but not always, in that in certain contexts the choice between hardwareand software can become significant) a design choice representing costvs. efficiency tradeoffs. Those having skill in the art will appreciatethat there are various implementations by which processes and/or systemsand/or other technologies described herein can be effected (e.g.,hardware, software, and/or firmware), and that the preferredimplementation will vary with the context in which the processes and/orsystems and/or other technologies are deployed. For example, if animplementer determines that speed and accuracy are paramount, theimplementer may opt for a mainly hardware and/or firmwareimplementation; alternatively, if flexibility is paramount, theimplementer may opt for a mainly software implementation; or, yet againalternatively, the implementer may opt for some combination of hardware,software, and/or firmware. Hence, there are several possibleimplementations by which the processes and/or devices and/or othertechnologies described herein may be effected, none of which isinherently superior to the other in that any implementation to beutilized is a choice dependent upon the context in which theimplementation will be deployed and the specific concerns (e.g., speed,flexibility, or predictability) of the implementer, any of which mayvary. Those skilled in the art will recognize that optical aspects ofimplementations will typically employ optically-oriented hardware,software, and or firmware.

In some implementations described herein, logic and similarimplementations may include software or other control structuressuitable to implement an operation. Electronic circuitry, for example,may manifest one or more paths of electrical current constructed andarranged to implement various logic functions as described herein. Insome implementations, one or more media are configured to bear adevice-detectable implementation if such media hold or transmit aspecial-purpose device instruction set operable to perform as describedherein. In some variants, for example, this may manifest as an update orother modification of existing software or firmware, or of gate arraysor other programmable hardware, such as by performing a reception of ora transmission of one or more instructions in relation to one or moreoperations described herein. Alternatively or additionally, in somevariants, an implementation may include special-purpose hardware,software, firmware components, and/or general-purpose componentsexecuting or otherwise invoking special-purpose components.Specifications or other implementations may be transmitted by one ormore instances of tangible transmission media as described herein,optionally by packet transmission or otherwise by passing throughdistributed media at various times.

Alternatively or additionally, implementations may include executing aspecial-purpose instruction sequence or otherwise invoking circuitry forenabling, triggering, coordinating, requesting, or otherwise causing oneor more occurrences of any functional operations described below. Insome variants, operational or other logical descriptions herein may beexpressed directly as source code and compiled or otherwise invoked asan executable instruction sequence. In some contexts, for example, C++or other code sequences can be compiled directly or otherwiseimplemented in high-level descriptor languages (e.g., alogic-synthesizable language, a hardware description language, ahardware design simulation, and/or other such similar mode(s) ofexpression). Alternatively or additionally, some or all of the logicalexpression may be manifested as a Verilog-type hardware description orother circuitry model before physical implementation in hardware,especially for basic operations or timing-critical applications. Thoseskilled in the art will recognize how to obtain, configure, and optimizesuitable transmission or computational elements, material supplies,actuators, or other common structures in light of these teachings.

In a general sense, those skilled in the art will recognize that thevarious embodiments described herein can be implemented, individuallyand/or collectively, by various types of electro-mechanical systemshaving a wide range of electrical components such as hardware, software,firmware, and/or virtually any combination thereof; and a wide range ofcomponents that may impart mechanical force or motion such as rigidbodies, spring or torsional bodies, hydraulics, electro-magneticallyactuated devices, and/or virtually any combination thereof.Consequently, as used herein “electro-mechanical system” includes, butis not limited to, electrical circuitry operably coupled with atransducer (e.g., an actuator, a motor, a piezoelectric crystal, a MicroElectro Mechanical System (MEMS), etc.), electrical circuitry having atleast one discrete electrical circuit, electrical circuitry having atleast one integrated circuit, electrical circuitry having at least oneapplication specific integrated circuit, electrical circuitry forming ageneral purpose computing device configured by a computer program (e.g.,a general purpose computer configured by a computer program which atleast partially carries out processes and/or devices described herein,or a microprocessor configured by a computer program which at leastpartially carries out processes and/or devices described herein),electrical circuitry forming a memory device (e.g., forms of memory(e.g., random access, flash, read only, etc.)), electrical circuitryforming a communications device (e.g., a modem, module, communicationsswitch, optical-electrical equipment, etc.), and/or any non-electricalanalog thereto, such as optical or other analogs. Those skilled in theart will also appreciate that examples of electro-mechanical systemsinclude but are not limited to a variety of consumer electronicssystems, medical devices, as well as other systems such as motorizedtransport systems, factory automation systems, security systems, and/orcommunication/computing systems. Those skilled in the art will recognizethat electro-mechanical as used herein is not necessarily limited to asystem that has both electrical and mechanical actuation except ascontext may dictate otherwise.

In a general sense, those skilled in the art will also recognize thatthe various aspects described herein which can be implemented,individually and/or collectively, by a wide range of hardware, software,firmware, and/or any combination thereof can be viewed as being composedof various types of “electrical circuitry.” Consequently, as used herein“electrical circuitry” includes, but is not limited to, electricalcircuitry having at least one discrete electrical circuit, electricalcircuitry having at least one integrated circuit, electrical circuitryhaving at least one application specific integrated circuit, electricalcircuitry forming a general purpose computing device configured by acomputer program (e.g., a general purpose computer configured by acomputer program which at least partially carries out processes and/ordevices described herein, or a microprocessor configured by a computerprogram which at least partially carries out processes and/or devicesdescribed herein), electrical circuitry forming a memory device (e.g.,forms of memory (e.g., random access, flash, read only, etc.)), and/orelectrical circuitry forming a communications device (e.g., a modem,communications switch, optical-electrical equipment, etc.). Those havingskill in the art will recognize that the subject matter described hereinmay be implemented in an analog or digital fashion or some combinationthereof.

FIGS. 1 and 2 provide respective general descriptions of severalenvironments in which implementations may be implemented. FIG. 1 isgenerally directed toward a thin computing environment 19 having a thincomputing device 20, and FIG. 2 is generally directed toward a generalpurpose computing environment 100 having general purpose computingdevice 110. However, as prices of computer components drop and ascapacity and speeds increase, there is not always a bright line betweena thin computing device and a general purpose computing device. Further,there is a continuous stream of new ideas and applications forenvironments benefited by use of computing power. As a result, nothingshould be construed to limit disclosed subject matter herein to aspecific computing environment unless limited by express language.

FIG. 1 and the following discussion are intended to provide a brief,general description of a thin computing environment 19 in whichembodiments may be implemented. FIG. 1 illustrates an example systemthat includes a thin computing device 20, which may be included orembedded in an electronic device that also includes a device functionalelement 50. For example, the electronic device may include any itemhaving electrical or electronic components playing a role in afunctionality of the item, such as for example, a refrigerator, a car, adigital image acquisition device, a camera, a cable modem, a printer anultrasound device, an x-ray machine, a non-invasive imaging device, oran airplane. For example, the electronic device may include any itemthat interfaces with or controls a functional element of the item. Inanother example, the thin computing device may be included in animplantable medical apparatus or device. In a further example, the thincomputing device may be operable to communicate with an implantable orimplanted medical apparatus. For example, a thin computing device mayinclude a computing device having limited resources or limitedprocessing capability, such as a limited resource computing device, awireless communication device, a mobile wireless communication device, asmart phone, an electronic pen, a handheld electronic writing device, ascanner, a cell phone, a smart phone (such as an Android® or iPhone®based device), a tablet device (such as an iPad®) or a Blackberry®device. For example, a thin computing device may include a thin clientdevice or a mobile thin client device, such as a smart phone, tablet,notebook, or desktop hardware configured to function in a virtualizedenvironment.

The thin computing device 20 includes a processing unit 21, a systemmemory 22, and a system bus 23 that couples various system componentsincluding the system memory 22 to the processing unit 21. The system bus23 may be any of several types of bus structures including a memory busor memory controller, a peripheral bus, and a local bus using any of avariety of bus architectures. The system memory includes read-onlymemory (ROM) 24 and random access memory (RAM) 25. A basic input/outputsystem (BIOS) 26, containing the basic routines that help to transferinformation between sub-components within the thin computing device 20,such as during start-up, is stored in the ROM 24. A number of programmodules may be stored in the ROM 24 or RAM 25, including an operatingsystem 28, one or more application programs 29, other program modules 30and program data 31.

A user may enter commands and information into the computing device 20through one or more input interfaces. An input interface may include atouch-sensitive screen or display surface, or one or more switches orbuttons with suitable input detection circuitry. A touch-sensitivescreen or display surface is illustrated as a touch-sensitive display 32and screen input detector 33. One or more switches or buttons areillustrated as hardware buttons 44 connected to the system via ahardware button interface 45. The output circuitry of thetouch-sensitive display 32 is connected to the system bus 23 via a videodriver 37. Other input devices may include a microphone 34 connectedthrough a suitable audio interface 35, or a physical hardware keyboard(not shown). Output devices may include the display 32, or a projectordisplay 36. The system bus 23 also may be connected to other resources52 that may be accessed and used by the processing unit 21 or by othercomponents of the thin computing device 20.

In addition to the display 32, the computing device 20 may include otherperipheral output devices, such as at least one speaker 38. Otherexternal input or output devices 39, such as a joystick, game pad,satellite dish, scanner or the like may be connected to the processingunit 21 through a USB port 40 and USB port interface 41, to the systembus 23. Alternatively, the other external input and output devices 39may be connected by other interfaces, such as a parallel port, game portor other port. The computing device 20 may further include or be capableof connecting to a flash card memory (not shown) through an appropriateconnection port (not shown). The computing device 20 may further includeor be capable of connecting with a network through a network port 42 andnetwork interface 43, and through wireless port 46 and correspondingwireless interface 47 may be provided to facilitate communication withother peripheral devices, including other computers, printers, and so on(not shown). It will be appreciated that the various components andconnections shown are examples and other components and means ofestablishing communication links may be used.

The computing device 20 may be primarily designed to include a userinterface. The user interface may include a character, a key-based, oranother user data input via the touch sensitive display 32. The userinterface may include using a stylus (not shown). Moreover, the userinterface is not limited to an actual touch-sensitive panel arranged fordirectly receiving input, but may alternatively or in addition respondto another input device such as the microphone 34. For example, spokenwords may be received at the microphone 34 and recognized.Alternatively, the computing device 20 may be designed to include a userinterface having a physical keyboard (not shown).

The device functional elements 50 are typically application specific andrelated to a function of the electronic device, and are coupled with thesystem bus 23 through an interface (not shown). The functional elementsmay typically perform a single well-defined task with little or no userconfiguration or setup, such as a refrigerator keeping food cold, a cellphone connecting with an appropriate tower and transceiving voice ordata information, a camera capturing and saving an image, orcommunicating with an implantable medical apparatus.

In certain instances, one or more elements of the thin computing device20 may be deemed not necessary and omitted. In other instances, one ormore other elements may be deemed necessary and added to the thincomputing device.

FIG. 2 and the following discussion are intended to provide a brief,general description of an environment in which embodiments may beimplemented. FIG. 2 illustrates an example embodiment of ageneral-purpose computing system in which embodiments may beimplemented, shown as a computing system environment 100. Components ofthe computing system environment 100 may include, but are not limitedto, a general purpose computing device 110 having a processor 120, asystem memory 130, and a system bus 121 that couples various systemcomponents including the system memory to the processor 120. The systembus 121 may be any of several types of bus structures including a memorybus or memory controller, a peripheral bus, and a local bus using any ofa variety of bus architectures. By way of example, and not limitation,such architectures include Industry Standard Architecture (ISA) bus,Micro Channel Architecture (MCA) bus, Enhanced ISA (EISA) bus, VideoElectronics Standards Association (VESA) local bus, and PeripheralComponent Interconnect (PCI) bus, also known as Mezzanine bus.

The computing system environment 100 typically includes a variety ofcomputer-readable media products. Computer-readable media may includeany media that can be accessed by the computing device 110 and includeboth volatile and nonvolatile media, removable and non-removable media.By way of example, and not of limitation, computer-readable media mayinclude computer storage media. By way of further example, and not oflimitation, computer-readable media may include a communication media.

Computer storage media includes volatile and nonvolatile, removable andnon-removable media implemented in any method or technology for storageof information such as computer-readable instructions, data structures,program modules, or other data. Computer storage media includes, but isnot limited to, random-access memory (RAM), read-only memory (ROM),electrically erasable programmable read-only memory (EEPROM), flashmemory, or other memory technology, CD-ROM, digital versatile disks(DVD), or other optical disk storage, magnetic cassettes, magnetic tape,magnetic disk storage, or other magnetic storage devices, or any othermedium which can be used to store the desired information and which canbe accessed by the computing device 110. In a further embodiment, acomputer storage media may include a group of computer storage mediadevices. In another embodiment, a computer storage media may include aninformation store. In another embodiment, an information store mayinclude a quantum memory, a photonic quantum memory, or atomic quantummemory. Combinations of any of the above may also be included within thescope of computer-readable media. Computer storage media is anon-transitory computer-readable media.

Communication media may typically embody computer-readable instructions,data structures, program modules, or other data in a modulated datasignal such as a carrier wave or other transport mechanism and includeany information delivery media. The term “modulated data signal” means asignal that has one or more of its characteristics set or changed insuch a manner as to encode information in the signal. By way of example,and not limitation, communications media may include wired media, suchas a wired network and a direct-wired connection, and wireless mediasuch as acoustic, RF, optical, and infrared media. Communication mediais a transitory computer-readable media.

The system memory 130 includes computer storage media in the form ofvolatile and nonvolatile memory such as ROM 131 and RAM 132. A RAM mayinclude at least one of a DRAM, an EDO DRAM, a SDRAM, a RDRAM, a VRAM,or a DDR DRAM. A basic input/output system (BIOS) 133, containing thebasic routines that help to transfer information between elements withinthe computing device 110, such as during start-up, is typically storedin ROM 131. RAM 132 typically contains data and program modules that areimmediately accessible to or presently being operated on by theprocessor 120. By way of example, and not limitation, FIG. 2 illustratesan operating system 134, application programs 135, other program modules136, and program data 137. Often, the operating system 134 offersservices to applications programs 135 by way of one or more applicationprogramming interfaces (APIs) (not shown). Because the operating system134 incorporates these services, developers of applications programs 135need not redevelop code to use the services. Examples of APIs providedby operating systems such as Microsoft's “WINDOWS”® are well known inthe art.

The computing device 110 may also include other removable/non-removable,volatile/nonvolatile computer storage media products. By way of exampleonly, FIG. 2 illustrates a non-removable non-volatile memory interface(hard disk interface) 140 that reads from and writes for example tonon-removable, non-volatile magnetic media. FIG. 2 also illustrates aremovable non-volatile memory interface 150 that, for example, iscoupled to a magnetic disk drive 151 that reads from and writes to aremovable, non-volatile magnetic disk 152, or is coupled to an opticaldisk drive 155 that reads from and writes to a removable, non-volatileoptical disk 156, such as a CD ROM. Other removable/non-removable,volatile/non-volatile computer storage media that can be used in theexample operating environment include, but are not limited to, magnetictape cassettes, memory cards, flash memory cards, DVDs, digital videotape, solid state RAM, and solid state ROM. The hard disk drive 141 istypically connected to the system bus 121 through a non-removable memoryinterface, such as the interface 140, and magnetic disk drive 151 andoptical disk drive 155 are typically connected to the system bus 121 bya removable non-volatile memory interface, such as interface 150.

The drives and their associated computer storage media discussed aboveand illustrated in FIG. 2 provide storage of computer-readableinstructions, data structures, program modules, and other data for thecomputing device 110. In FIG. 2, for example, hard disk drive 141 isillustrated as storing an operating system 144, application programs145, other program modules 146, and program data 147. Note that thesecomponents can either be the same as or different from the operatingsystem 134, application programs 135, other program modules 136, andprogram data 137. The operating system 144, application programs 145,other program modules 146, and program data 147 are given differentnumbers here to illustrate that, at a minimum, they are differentcopies.

A user may enter commands and information into the computing device 110through input devices such as a microphone 163, keyboard 162, andpointing device 161, commonly referred to as a mouse, trackball, ortouch pad. Other input devices (not shown) may include at least one of atouch-sensitive screen or display surface, joystick, game pad, satellitedish, and scanner. These and other input devices are often connected tothe processor 120 through a user input interface 160 that is coupled tothe system bus, but may be connected by other interface and busstructures, such as a parallel port, game port, or a universal serialbus (USB).

A display 191, such as a monitor or other type of display device orsurface may be connected to the system bus 121 via an interface, such asa video interface 190. A projector display engine 192 that includes aprojecting element may be coupled to the system bus. In addition to thedisplay, the computing device 110 may also include other peripheraloutput devices such as speakers 197 and printer 196, which may beconnected through an output peripheral interface 195. The system bus 121also may be connected to other resources 125 that may be accessed andused by the processor unit 120 or by other components of the computingdevice 110.

The computing system environment 100 may operate in a networkedenvironment using logical connections to one or more remote computers,such as a remote computer 180. The remote computer 180 may be a personalcomputer, a server, a router, a network PC, a peer device, or othercommon network node, and typically includes many or all of the elementsdescribed above relative to the computing device 110, although only amemory storage device 181 has been illustrated in FIG. 2. The networklogical connections depicted in FIG. 2 include a local area network(LAN) and a wide area network (WAN), and may also include other networkssuch as a personal area network (PAN) (not shown). Such networkingenvironments are commonplace in offices, enterprise-wide computernetworks, intranets, and the Internet.

When used in a networking environment, the computing system environment100 is connected to the network 171 through a network interface, such asthe network interface 170, the modem 172, or the wireless interface 193.The network may include a LAN network environment, or a WAN networkenvironment, such as the Internet. In a networked environment, programmodules depicted relative to the computing device 110, or portionsthereof, may be stored in a remote memory storage device. By way ofexample, and not limitation, FIG. 2 illustrates remote applicationprograms 185 as residing on memory storage device 181. It will beappreciated that the network connections shown are examples and othermeans of establishing a communication link between the computers may beused.

In certain instances, one or more elements of the computing device 110may be deemed not necessary and omitted. In other instances, one or moreother elements may be deemed necessary and added to the computingdevice.

FIG. 3 illustrates a surface acoustic wave device 200. The surfaceacoustic wave device includes a piezoelectric substrate 205. In anembodiment, the piezoelectric substrate may include a piezoelectricsubstrate of a type or structure known to those skilled in the art asuseful in fabricating an interdigital transducer or interdigitatedtransducer, or a resonator. The surface acoustic wave device includes aconfigurable electrode assembly 208. The configurable electrode assemblyincluding a plurality of spaced-apart elongated electrode elementselectromechanically coupled with the piezoelectric substrate. Theplurality of elongated electrode elements 210 are illustrated in FIG. 3as elongated electrode elements 210.1-210.7. The configurable electrodeassembly includes a first signal bus 232 proximate to each of theplurality of electrode elements, and electrically isolated therefrom.The configurable electrode assembly includes a first matrix ofaddressable switches 222. Each addressable switch of the first matrix isconfigured to electrically couple a respective electrode element of theplurality of electrode elements with the first signal bus. Addressableswitches of this document are symbolically illustrated by addressableswitches 222.1, 222.2, and 222.3 of the first matrix of addressableswitches. Address lines for the first matrix of addressable switches areillustrated by address lines 224. In an alternative embodiment, theaddress lines 224 describe a first switching bus. The configurableelectrode assembly includes a second signal bus 236 proximate to each ofthe plurality of electrode elements, and electrically isolatedtherefrom. In an embodiment, the second signal bus may include a groundbus. The configurable electrode assembly includes a second matrix ofaddressable switches 226. Each addressable switch of the second matrixis configured to electrically couple a respective electrode element ofthe plurality of electrode elements with the second signal bus. Addresslines for the second matrix of addressable switches are illustrated byaddress lines 228. In an alternative embodiment, the address lines 228describe a second switching bus. In an embodiment, once programmed orconfigured, the configurable electrode assembly electromechanicallycoupled with the piezoelectric substrate may be described as aninterdigital transducer or interdigitated transducer. In FIG. 3 andsubsequent figures, the same symbol is used for individual addressableswitches but no reference number is assigned in the interest of compactprosecution, and their respective address lines are not separatelyillustrated also in the interest of compact prosecution. In anembodiment, the device is configured as a resonator or a filter, such aswith a variable load.

In an embodiment, the elongated electrode elements 210 are applied tothe piezoelectric substrate 205. In an embodiment, the elongatedelectrode elements include a conductive coating applied to thepiezoelectric substrate. In an embodiment, the elongated electrodeelements are adhered, or pressed on a surface of the piezoelectricsubstrate. In an embodiment, the elongated electrode elements includethin film elongated electrode elements electromechanically coupled to asurface of the piezoelectric substrate. In an embodiment, the elongatedelectrode elements are capacitively coupled to a surface of thepiezoelectric substrate. In an embodiment, the elongated electrodeelements are fabricated on a surface of the piezoelectric substrate. Inan embodiment, the elongated electrode elements are deposited on thepiezoelectric substrate. In an embodiment, the plurality of elongatedelectrode elements 210 have a center-to-center transverse spacing 215 ofnot more than λ/2 (where the surface wavelength λ on the piezoelectricsubstrate=acoustic wave velocity VSAW/center frequency f0 of thedevice). In an embodiment, the transverse spacing includes alongitudinal spacing. In an embodiment, a subgroup of the plurality ofelongated electrode elements have a center-to-center transverse spacingof not more than λ/4. In an embodiment, a subgroup of the plurality ofelongated electrode elements have a center-to-center transverse spacingof more than λ/4. In an embodiment, a subgroup of the plurality ofelongated electrode elements have a center-to-center transverse spacingof not more than λ/8.

In an embodiment, each elongated electrode element of the plurality ofelongated electrode elements has a width of not more than λ/4. In anembodiment, the first signal bus is carried by the piezoelectricsubstrate. In an embodiment, the first signal bus is disposed on thepiezoelectric substrate. In an embodiment, the first signal bus crosseseach of the plurality of electrode elements. In an embodiment, thesecond signal bus is carried by the piezoelectric substrate. In anembodiment, the second signal bus is disposed on the piezoelectricsubstrate. In an embodiment, the second signal bus crosses each of theplurality of electrode elements. In an embodiment, the second signal bus236 includes a third signal bus. In an embodiment, the second signal busincludes a complementary signal bus. In an embodiment, the third signalbus may include a ground bus.

In an embodiment of the device 200, if the first signal bus 232 iselectrically coupled to a first selected electrode element (for examplethe electrode element 210.1) of the plurality of electrode elements 210by the respective addressable switches (for example the switch 222.1) ofthe first matrix 222, and if the second signal bus 236 is electricallycoupled to a second selected electrode element (for example theelectrode element 210.3) of the plurality of electrode elements by therespective addressable switches of the second matrix 226, the secondelectrode elements not including the first selected electrode element(i.e., disjoint sets), the configurable electrode assembly 208 has anelectrical response to a signal applied across the first signal bus at afirst electrical contact 234 and the second signal bus 236 at a secondelectrical contact 238 that is a function of the first selectedelectrode element and the second selected electrode element. In anembodiment, an electrical response includes a frequency response,impulse response, or impedance as a function of signal frequency. Inanother embodiment, the first selected electrode element includeselectrode elements 210.1 and 210.5, and the second selected electrodeelement includes electrode elements 210.3 and 210.7. In an embodiment,the configurable electrode assembly is configured to generate mechanicalor acoustic strain in the substrate in response to an electrical signalapplied across the first signal bus and the second input signal bus. Inan embodiment, an addressable switch of the first matrix of addressableswitches or of the second matrix of addressable switches includes aswitch having at least two on states. In an embodiment, the switchhaving at least two on states includes a switch having a variable orselectable attenuation. For example, the variable or selectableattenuation may be provided by two or more different resistancesettings.

In an embodiment of the device 200, an addressable switch of the firstmatrix of addressable switches 222 or the second matrix of addressableswitches 226 includes a semiconductor switch. In an embodiment, anaddressable switch includes a floating-gate transistor. In anembodiment, an addressable switch includes a memory cell architecturehaving a floating-gate transistor. In an embodiment, the first matrix ofaddressable switches and the second matrix of addressable switches areincluded in a device having addressable memory elements. Eachaddressable memory element configured to electrically couple arespective electrode sub-element with the first signal bus or the secondsignal bus. In an embodiment, the device having addressable memoryelements includes a flash device having addressable MOSFET transistorswitches. Each addressable MOSFET transistor switch configured toelectrically couple a respective electrode sub-element with the firstsignal bus or the second signal bus. In an embodiment, the flash deviceincludes two or more flash devices. In an embodiment, an addressableswitch of the first matrix of addressable switches or the second matrixof addressable switches includes a MEMS device. In an embodiment, anaddressable switch of the first matrix of addressable switches or thesecond matrix of addressable switches includes a refreshable CMOSdevice. In an embodiment, an addressable switch of the first matrix ofaddressable switches or the second matrix of addressable switchesincludes a one-time programmable switch. In an embodiment, the one-timeprogrammable switch includes a fuse or an antifuse programmable switch.In an embodiment, an addressable switch of the first matrix ofaddressable switches or the second matrix of addressable switchesincludes a reprogrammable switch. For example, the individual switchesmay be one-time settable (either opening or closing), bulk resettable,or individually toggleable (i.e. can be turned on or off). For example,the individual switches may be controlled by a memory device that mayhave the one-time settable (either opening or closing), bulk resettable,or individually toggleable properties. In an embodiment, an addressableswitch of the first matrix of addressable switches or the second matrixof addressable switches includes a diode or a diode bridge. In anembodiment, an addressable switch of the first matrix of addressableswitches or the second matrix of addressable switches includes arandomly accessible switch. In an embodiment, an addressable switch ofthe first matrix of addressable switches or the second matrix ofaddressable switches is addressable by application of a switching signalacross an address line of the switch and a signal bus coupled to theindividual addressable switch. For example, the switching signal mayinclude a DC voltage. For example, the switching signal may include avoltage pulse. In an embodiment, the first matrix of addressableswitches or the second matrix of addressable switches includes coupledcells that are coupled with a memory array and are configured to bechanged in a single operation. For example, the memory array may includea double buffered or a ping-pong buffered memory array.

In an embodiment, the first matrix of addressable switches 222 and thesecond matrix of addressable switches 226 are configured to becollectively switched between a first arbitrary state and a secondarbitrary state in less than one-tenth of a second. In an embodiment,the first matrix of addressable switches and the second matrix ofaddressable switches are configured to be collectively switched betweena first arbitrary state and a second arbitrary state in less thanone-hundredth of a second. In an embodiment, the first matrix ofaddressable switches and the second matrix of addressable switches areconfigured to be collectively switched between a first arbitrary stateand a second arbitrary state in less than one millisecond. In anembodiment, the first matrix of addressable switches and the secondmatrix of addressable switches are configured to be collectivelyswitched between a first arbitrary state and a second arbitrary state inless than one microsecond.

In an embodiment, the configurable electrode assembly 208 includes areconfigurable electrode assembly. In an embodiment, the configurableelectrode assembly includes a one-time configurable electrode assembly.In an embodiment, the configurable electrode assembly includes aprogrammable, configurable electrode assembly.

In an embodiment, the device 200 includes a switch controller 252configured to operate an addressable switch of the first matrix ofaddressable switches 222 and an addressable switch of the second matrixof addressable switches 226. In an embodiment, the switch controllerincludes a first switch controller configured to operate an addressableswitch of the first matrix of addressable switches and a second firstswitch controller configured to operate an addressable switch of thesecond matrix of addressable switches.

In an embodiment, the device 200 includes a configuration manager 254.The configuration manager is configured to (i) receive a request for adevice parameter or sensitivity of the acoustic wave device, and (ii)select settings of the first and second matrices of addressable switchesof the configurable electrode assembly 208 implementing the requesteddevice parameter or sensitivity. In an embodiment, the request includesa request for an arbitrary device parameter or sensitivity of thedevice. In an embodiment, the request for a device parameter orsensitivity includes at least one of a requested center frequency f₀,bandwidth, or transfer function.

In an embodiment, the (ii) select settings includes (a) select anelectrode pattern predicted to produce the requested device parameter orsensitivity and (b) select settings of the first and second matrices ofaddressable switches of the configurable electrode assembly implementingthe selected electrode pattern in the electrode sub-elements. In anembodiment, the electrode pattern is selected responsive to therequested device parameter or sensitivity of the device and at least oneor more optimization parameters. For example, the optimizationparameters may include optimization parameters stored by the device, ormay be specified in the received request. In an embodiment, the selectan electrode pattern includes select an optimized electrode patternpredicted to produce the requested device parameter or sensitivity. Inan embodiment, the (ii) select settings includes select the settings inresponse to a feedback loop monitoring a performance by the configurableelectrode assembly with respect to the requested device parameter orsensitivity, implementing a change in the settings of the first andsecond matrices of addressable switches in response to the monitoredperformance, and then evaluating the performance by the configurableelectrode assembly with the changed settings with respect to therequested device parameter or sensitivity. For example, the feedbackloop may be a real time feedback loop. In an embodiment, theconfiguration manager may be implemented in part or in whole using theprocessing unit 21 and one or more components of the thin computingdevice 20 described in conjunction with FIG. 1, or the processor 120 andone or more components of the general purpose computing device 100described in conjunction with FIG. 2. In an embodiment, the device 200includes a receiver 256 configured to receive a request for an surfaceacoustic wave characteristic.

In an embodiment, the device 200 includes a receiver 256 configured toreceive a request for a device parameter or sensitivity of the device.In an embodiment, the request for a device parameter or sensitivityincludes a requested frequency response. For example, the request mayuse a curve or parametric format. In an embodiment, the request for adevice parameter or sensitivity includes a requested impulse response.In an embodiment, the request for a device parameter or sensitivityincludes a requested amplitude or phase response. In an embodiment, therequest for a device parameter or sensitivity includes requested fingerpositions, spacings, or widths. In an embodiment, the request for adevice parameter or sensitivity includes a request for a selectedelectrode pattern in the electrode elements. In an embodiment, therequest for a device parameter or sensitivity includes requestedsettings of the first and second matrices of addressable switches of theconfigurable electrode assembly implementing a selected electrodepattern in the electrode elements. In an embodiment, the requestincludes a request for a stored electrode pattern. In an embodiment, thereceiver is further configured to store the request for a selectedelectrode pattern in the electrode elements.

In an embodiment, the piezoelectric substrate 205 includes a secondinterdigitated transducer and a third interdigitated transducer. In anembodiment, the acoustic surface wave device 200 is located on thepiezoelectric substrate in a surface acoustic wave propagation pathwaybetween the second interdigitated transducer and the thirdinterdigitated transducer.

For example, in an embodiment, the acoustic surface wave device 200 maybe used as a one-port resonator, or as an intermediate filterstructures. In these uses, the acoustic surface wave device functions asa passive (not connected to an input or output) element that reflects orabsorbs with a particular frequency response.

In an embodiment, an “arbitrary” selection or action includes at aperson or a machine's discretion rather than according to a standard. Inan embodiment, an “arbitrary” selection or action includes at a personor a machine's choice or preference. In an embodiment, an “arbitrary”selection or action includes a selection or an action within anacceptable range. In an embodiment, an “arbitrary” selection of adatabase may include selecting one or more databases from a universe ofknown databases.

FIG. 4 illustrates an example operational flow 300 implemented in aconfigurable electrode assembly of a surface acoustic wave device. Aftera start operation, the operational flow includes a reception operation310. The reception operation includes receiving a request for a deviceparameter or sensitivity of the acoustic wave device. In an embodiment,the reception operation may be implemented using the receiver 256described in conjunction with FIG. 3. A configuration operation 320includes selecting an electrode pattern producing the requested deviceparameter or sensitivity in the configurable electrode. The configurableelectrode assembly including a plurality of spaced-apart electrodeelements. In an embodiment, the configurable electrode assembly includesa plurality of spaced-apart elongated electrode elementselectromechanically coupled with a piezoelectric substrate. In anembodiment, the selecting may include selecting an optimized electrodepattern predicted to produce the surface acoustic wave characteristic ina configurable electrode assembly. In an embodiment, the configurationoperation may be implemented using the configuration manager 254described in conjunction with FIG. 3. In an embodiment, theconfiguration operation may be further implemented in part or in wholeusing the processing unit 21 and one or more components of the thincomputing device 20 described in conjunction with FIG. 1, or theprocessor 120 and one or more components of the general purposecomputing device 100 described in conjunction with FIG. 2. A firstchoosing operation 330 includes selecting settings of a first matrix ofswitches implementing the selected electrode pattern in a firstelectrode element of the plurality of electrode elements. Each switch isconfigured to electrically couple a respective electrode element of theelectrode elements with a first signal bus. In an embodiment, the firstmatrix of switches includes a first matrix of addressable switches. Inan embodiment, the first choosing operation may be implemented using theconfiguration manager 254 described in conjunction with FIG. 3. In anembodiment, the first choosing operation may be further implemented inpart or in whole using the processing unit 21 and one or more componentsof the thin computing device 20 described in conjunction with FIG. 1, orthe processor 120 and one or more components of the general purposecomputing device 100 described in conjunction with FIG. 2. A firstimplementing operation 340 includes electrically coupling the firstelectrode element with a first signal bus by implementing the selectedsettings of the first matrix of switches. In an embodiment, the firstimplementing operation may be implemented using the switch controller252 described in conjunction with FIG. 3. A second choosing operation350 includes selecting settings of a second matrix of switchesimplementing the selected electrode pattern in a second electrodeelement of the plurality of electrode elements. In an embodiment, eachswitch is configured to electrically couple a respective electrodeelement of the electrode elements with a second signal bus. In anembodiment, the second matrix of switches includes a second matrix ofaddressable switches. In an embodiment, the second choosing operationmay be implemented using the configuration manager 254 described inconjunction with FIG. 3. In an embodiment, the second choosing operationmay be further implemented in part or in whole using the processing unit21 and one or more components of the thin computing device 20 describedin conjunction with FIG. 1, or the processor 1200 and one or morecomponents of the general purpose computing device 100 described inconjunction with FIG. 2. A second implementing operation 360 includeselectrically coupling the second electrode element with a second signalbus by implementing the selected settings of the second matrix ofswitches. In an embodiment, the second implementing operation may beimplemented using the switch controller 252 described in conjunctionwith FIG. 3. The operational flow includes an end operation.

In an embodiment, the reception operation 310 includes receiving arequest for a device parameter or sensitivity includes at least one of arequested center frequency f₀ or bandwidth. In an embodiment, thereception operation includes receiving a request for an arbitrary deviceparameter or sensitivity.

In an embodiment, the operational flow 300 includes applying an inputsignal across the first signal bus and the second signal bus, andinitiating surface acoustic waves on the piezoelectric substrate havingamplitude or phase characteristics that are a function of the firstelectrode element and the second electrode element.

In an embodiment of the configuration operation 320, the plurality ofelectrode elements have a center-to-center transverse spacing of notmore than λ/2 (where the surface wavelength λ on the piezoelectricsubstrate=acoustic wave velocity V_(SAW)/center frequency f₀ of thedevice). In an embodiment, each electrode element has a width of notmore than λ/4.

FIG. 5 illustrates a surface acoustic wave device 400. The surfaceacoustic wave device includes a piezoelectric substrate 405. The surfaceacoustic wave device includes an input electrode assembly and an outputelectrode assembly. In an embodiment, once programmed or configured, theinput electrode assembly electromechanically coupled with thepiezoelectric substrate may be described as an input interdigitaltransducer. In an embodiment, once programmed or configured, the outputelectrode assembly electromechanically coupled with the piezoelectricsubstrate may be described as an output interdigital transducer. Thesurface acoustic wave device includes a surface wave propagating region407 of the piezoelectric substrate. In an embodiment, the surface wavepropagating region is located in a propagation path between the inputelectrode assembly and the output electrode assembly.

The surface acoustic wave device 400 includes a configurable electrodeassembly 408 and another electrode assembly, illustrated by a fixedelectrode assembly 409. In the surface acoustic wave device, the inputelectrode assembly or the output electrode assembly includes theconfigurable electrode assembly. In an embodiment, the another electrodeassembly may include another configurable electrode assembly or a fixedelectrode assembly. A fixed electrode assembly is illustrated by a firstfixed electrode 482, illustrated in an embodiment with a firstelectrical contact 484, and a second fixed electrode 486, illustrated inan embodiment with a second electrical contact 488. The configurableelectrode assembly 408 includes a plurality of spaced-apart elongatedelectrode elements 410 electromechanically coupled with thepiezoelectric substrate 405. The plurality of spaced-apart elongatedelectrode elements 410 are illustrated by electrode elements410.1-410.7. The configurable electrode assembly includes a first signalbus 432 proximate to each of the plurality of electrode elements, andelectrically isolated therefrom. In an embodiment, an electrical contact434 is coupled to the first signal bus. The configurable electrodeassembly includes a first matrix of addressable switches 422. Eachaddressable switch of the first matrix of addressable switches isconfigured to electrically couple a respective electrode element of theplurality of electrode elements with the first signal bus. Theconfigurable electrode assembly includes a second signal bus 436proximate to each of the plurality of electrode elements, andelectrically isolated therefrom. In an embodiment, a second electricalcontact 438 is coupled to the second signal bus. The configurableelectrode assembly includes a second matrix of addressable switches 426.Each addressable switch of the second matrix of addressable switches isconfigured to electrically couple a respective electrode element of theplurality of electrode elements with the second signal bus.

In an embodiment, the surface acoustic wave device 400 includes aRayleigh surface acoustic wave device. In an embodiment, the surfaceacoustic wave device includes a pseudo surface acoustic wave device. Forexample, a pseudo surface acoustic wave device may include a leaky SAWdevice, surface skimming bulk wave device, or a surface transverse wavedevice.

In an embodiment of the device 400, if the input electrode assemblyincludes the configurable electrode assembly, if the first signal bus432 is electrically coupled to a first selected electrode element (forexample the electrode element 410.1) of the plurality of electrodeelements 410 by the respective addressable switches of the first matrix422, and if the second signal bus 436 is electrically coupled to asecond selected electrode element (for example the electrode element410.3) of the plurality of electrode elements by the respectiveaddressable switches of the second matrix 426, the second electrodeelements not including the first selected electrode element (i.e.,disjoint sets), the input electrode assembly is configured in responseto an input signal applied across the first signal bus at the firstelectrical contact 434 and the second signal bus at the secondelectrical contact 438 to initiate surface waves on the piezoelectricsubstrate 405 having amplitude or phase characteristics that are afunction of the first selected electrode element and the second selectedelectrode element. In another embodiment, the first selected electrodeelement includes electrode elements 410.1 and 410.5, and the secondselected electrode element includes electrode elements 410.3 and 410.7.In an embodiment, the input electrode assembly is configured to generatemechanical strain in the substrate in response to electrical signalsapplied across the first input signal bus and the second input signalbus. In an embodiment, the input generated mechanical strain is afunction of the first selected electrode element and the second selectedelectrode element.

In an embodiment of the device 400, if the output electrode assemblyincludes the configurable electrode assembly, if the first signal bus432 is electrically coupled to a first selected electrode element (forexample the electrode element 410.1) of the plurality of electrodeelements 410 by the respective addressable switches of the first matrix422, and if the second signal bus 436 is electrically coupled to asecond selected electrode element (for example the electrode element410.3) of the plurality of electrode elements by the respectiveaddressable switches of the second matrix 426, the second electrodeelements not including the first selected electrode element (i.e.,disjoint sets), the output electrode assembly is configured to receive asurface acoustic wave initiated by the input electrode assembly andgenerate an electrical signal across the first signal bus and the secondsignal bus in response thereto. The generated electrical signal havingamplitude or phase characteristics that are a function of the firstselected electrode element and the second selected electrode element. Inan embodiment, the output electrode assembly is configured to generateelectrical signals in response to mechanical or acoustic strain in thesubstrate. In an embodiment, the generated electrical signal is afunction of a response of the first selected electrode element and thesecond selected electrode element to the mechanical strain in thesubstrate.

In an embodiment, the plurality of electrode elements 410 have acenter-to-center transverse spacing of not more than λ/2 (where thesurface wavelength λ on the piezoelectric substrate=acoustic wavevelocity V_(SAW)/center frequency f₀ of the device). In an embodiment,each electrode element has a width of not more than λ/4.

In an embodiment, a switch of the first matrix of addressable switches422 or the second matrix of addressable switches 426 includes asemiconductor switch. In an embodiment, a switch of the first matrix ofaddressable switches or the second matrix of addressable switchesincludes a floating-gate transistor. In an embodiment, the switches ofthe first matrix of addressable switches and the second matrix ofaddressable switches are included in a flash device having addressableMOSFET transistor switches. Each addressable MOSFET transistor switch isconfigured to electrically couple a respective input electrodesub-element with the first input signal bus or the second input signalbus. In an embodiment, the first matrix of addressable switches and thesecond matrix of addressable switches are included in a device havingaddressable memory elements. Each addressable memory element isconfigured to electrically couple a respective input electrodesub-element with the first input signal bus or the second input signalbus. In an embodiment, a switch of the first matrix of addressableswitches or the second matrix of addressable switches includes a MEMSdevice. In an embodiment, a switch of the first matrix of addressableswitches or the second matrix of addressable switches includes arefreshable CMOS device. In an embodiment, a switch of the first matrixof addressable switches or the second matrix of addressable switchesincludes a one-time programmable switch. In an embodiment, a switch ofthe first matrix of addressable switches or the second matrix ofaddressable switches includes a randomly accessible switch. In anembodiment, a switch of the first matrix of addressable switches or thesecond matrix of addressable switches includes a programmable switch.

In an embodiment, the input electrode assembly includes a first instanceof the configurable electrode assembly 408 and the output electrodeassembly includes a second instance of the configurable electrodeassembly 408. In an embodiment, the input electrode assembly includesthe configurable electrode assembly 408 and the output electrodeassembly includes a static electrode assembly 480. In an embodiment, theinput electrode assembly includes static electrode assembly and theoutput electrode assembly includes the configurable electrode assembly.

In an embodiment, the input electrode assembly has an input centerfrequency f_(i0) and the output electrode assembly has an output centerfrequency f₀₀. In an embodiment, input center frequency f_(i0) and theoutput center frequency f₀₀ are substantially identical. In anembodiment, the input center frequency f_(i0) and the output centerfrequency f₀₀ are not substantially identical.

In an embodiment, the configurable electrode assembly 408 includes aswitch controller 452 configured to operate an addressable switch of thefirst matrix of addressable switches 422 and an addressable switch ofthe second matrix of addressable switches 426. In an embodiment, theswitch controller is fabricated on the substrate 405. In an embodiment,the switch controller is configured to operate an addressable switch ofthe first matrix of matrix of addressable switches and an addressableswitch of the second matrix of matrix of addressable switches inresponse to a signal specifying switch settings selected to implement adevice characteristic. In an embodiment, the device characteristicincludes at least one of a requested center frequency f₀, bandwidth orpassband width, impulse response, or transfer function. In anembodiment, a transfer function may include a specified amplitude and/orphase response to an applied signal, and it may be a nonlinear phase ora nonsymetric amplitude response around the center frequency f₀. In anembodiment, the switch controller is configured to initiate a permanentone-time programming of a switch of the first matrix of addressableswitches and of a switch of the second matrix of addressable switches.For example, a one-time programmable switch may include an OTP NVM, ROM,PROM or FPROM one-time programmable switch. In an embodiment, the switchcontroller is configured to initiate a state change (conducting state)(non-conducting state) of a switch of the first matrix of addressableswitches and of a switch of the second matrix of addressable switches.

In an embodiment, the device 400 includes the switch controller 452coupled to an addressable switch of the first matrix of addressableswitches 422 and an addressable switch of the second matrix ofaddressable switches 426 of the configurable electrode assembly 408.

In an embodiment, the device 400 includes a configuration manager 454configured to (i) receive a request for a device characteristic, and(ii) select settings of the first and second matrices of addressableswitches of the configurable electrode assembly implementing therequested device characteristic. In an embodiment, the requested devicecharacteristic may include a requested filter characteristic. In anembodiment, the request for device characteristic includes a request foran amplitude or phase response by the surface acoustic wave device. Inan embodiment, the device characteristic includes an arbitrary devicecharacteristic. In an embodiment, the acoustic wave transfer functionincludes at least one of a requested center frequency f₀, bandwidth,impulse response, or transfer function. In an embodiment, the (ii)select settings includes (a) select an electrode pattern predicted toproduce the device characteristic and (b) select settings of the firstand second matrices of addressable switches implementing the selectedelectrode pattern in the electrode elements. In an embodiment, the (ii)select settings includes (a) select an optimized electrode pattern toproduce the device characteristic and (b) select settings of the firstand second matrices of addressable switches implementing the selectedoptimized electrode pattern in the input electrode elements. In anembodiment, the electrode pattern is selected responsive to therequested device parameter or sensitivity of the device and at least oneor more optimization parameters.

In an embodiment, the device 400 includes the configuration manager 454configured to (i) receive a request for a device characteristic, and(ii) select settings of the first and second matrices of addressableswitches of the configurable electrode assembly implementing therequested device characteristic.

In an embodiment, the configurable electrode assembly 408 includes athird signal bus 437 proximate to each electrode element of theplurality of electrode elements, and electrically isolated therefrom;and a third matrix of addressable switches 427. Each addressable switchof the third matrix of addressable switches 427 is configured toelectrically couple a respective electrode element 410 of the pluralityof electrode elements with the third signal bus 437.

In an embodiment, the device 400 includes the switch controller 452configured to operate an addressable switch of the first matrix ofaddressable switches, an addressable switch of the second matrix ofaddressable switches, and an addressable switch of the third matrix ofaddressable switches.

In an embodiment, the device 400 includes a receiver 456 configured toreceive a request for a device characteristic. In an embodiment, therequest for a device characteristic includes an amplitude or phaseresponse. In an embodiment, the request for a device characteristicincludes a requested frequency response. In an embodiment, the requestfor a device characteristic includes a requested impulse response. In anembodiment, the request for a device characteristic includes requestedfinger positions, length, spacing, or width. In an embodiment, therequest for a device characteristic includes a request for a selectedelectrode pattern in the electrode elements. In an embodiment, therequest for a device characteristic includes requested settings of thefirst and second matrices of addressable switches of the configurableelectrode assembly implementing a selected electrode pattern in theelectrode sub-elements. In an embodiment, the request for a devicecharacteristic includes a request for a stored electrode pattern. In anembodiment, the receiver is further configured to store the request fora device characteristic.

FIG. 6 illustrates an example operational flow 500 implemented in aconfigurable electrode assembly of a surface acoustic wave device. Aftera start operation, the operational flow includes a configurationoperation 520. The configuration operation includes selecting anelectrode pattern producing a requested acoustic wave devicecharacteristic in the configurable electrode assembly having a pluralityof electrode elements, and wherein an input electrode assembly or anoutput electrode assembly of the surface acoustic wave device includesthe configurable electrode assembly. In an embodiment, the configurableelectrode assembly includes a plurality of spaced-apart elongatedelectrode elements electromechanically coupled with a piezoelectricsubstrate. In an embodiment, the selecting may include selecting anoptimized electrode pattern predicted to produce the surface acousticwave characteristic in a configurable electrode assembly. In anembodiment, the configuration operation may be implemented using theconfiguration manager 454 described in conjunction with FIG. 5. In anembodiment, the configuration operation may be further implemented inpart or in whole using the processing unit 21 and one or more componentsof the thin computing device 20 described in conjunction with FIG. 1, orthe processor 120 and one or more components of the general purposecomputing device 100 described in conjunction with FIG. 2. A firstchoosing operation 530 includes selecting settings of a first matrix ofswitches implementing the selected electrode pattern in a firstelectrode element of the plurality of electrode elements. In anembodiment, each switch is configured to electrically couple arespective electrode element of the plurality of electrode elements witha first signal bus. In an embodiment, the first matrix of switchesincludes a first matrix of addressable switches. In an embodiment, thefirst choosing operation may be implemented using the configurationmanager 454 described in conjunction with FIG. 5. In an embodiment, thefirst choosing operation may be further implemented in part or in wholeusing the processing unit 21 and one or more components of the thincomputing device 20 described in conjunction with FIG. 1, or theprocessor 120 and one or more components of the general purposecomputing device 100 described in conjunction with FIG. 2. A firstimplementing operation 540 includes electrically coupling the firstelectrode element with a first signal bus by implementing the selectedsettings of the first matrix of switches. In an embodiment, the firstimplementing operation may be implemented using the switch controller452 described in conjunction with FIG. 5. A second choosing operation550 includes selecting settings of a second matrix of switchesimplementing the selected electrode pattern in a second electrodeelement of the plurality of electrode elements. In an embodiment, eachswitch is configured to electrically couple a respective electrodeelement of the electrode elements with a second signal bus. In anembodiment, the second matrix of switches includes a second matrix ofaddressable switches. In an embodiment, the second choosing operationmay be implemented using the configuration manager 454 described inconjunction with FIG. 5. In an embodiment, the second choosing operationmay be further implemented in part or in whole using the processing unit21 and one or more components of the thin computing device 20 describedin conjunction with FIG. 1, or the processor 120 and one or morecomponents of the general purpose computing device 100 described inconjunction with FIG. 2. A second implementing operation 560 includeselectrically coupling the second electrode element with a second signalbus by implementing the selected settings of the second matrix ofswitches. In an embodiment, the second implementing operation may beimplemented using the switch controller 452 described in conjunctionwith FIG. 5. The operational flow includes an end operation.

In an embodiment, the operational flow 500 includes a receptionoperation 510. The reception operation includes receiving the requestfor the acoustic wave device characteristic. In an embodiment, thereception operation may be implemented using the receiver 456 describedin conjunction with FIG. 5. In an embodiment, the receiving a requestincludes receiving a request for an arbitrary device characteristic. Forexample, the arbitrary device characteristic may include at least one ofa requested center frequency f₀, bandwidth, or transfer function.

In an embodiment, if the input electrode assembly includes theconfigurable electrode assembly, the operational flow 500 includesapplying an input signal across the first signal bus and the secondsignal bus, and initiating surface waves on the piezoelectric substratehaving amplitude or phase characteristics that are a function of thefirst electrode element and the second electrode element.

In an embodiment, if the output electrode assembly includes theconfigurable electrode assembly, the operational flow 500 includesreceiving a surface acoustic wave initiated by the input electrodeassembly and generating an electrical signal in response thereto. Thegenerated electrical signal having amplitude or phase characteristicsthat are a function of the first electrode element and the secondelectrode element.

In an embodiment, the configuration operation 520 includes selecting anoptimized electrode pattern known or predicted to produce the devicecharacteristic in a configurable electrode assembly of a surface wavedevice. In an embodiment, the surface wave device includes an inputelectrode assembly and an output electrode assembly. In an embodiment,plurality of electrode elements have a center-to-center transversespacing of not more than λ/2 (where the surface wavelength λ on thepiezoelectric substrate=acoustic wave velocity V_(SAW)/center frequencyf₀ of the device).

FIG. 7 illustrates an example surface wave device 600. The surface wavedevice includes a piezoelectric substrate 605. In an embodiment, thepiezoelectric substrate may include a piezoelectric substrate of a typeor structure known to those skilled in the art as useful in fabricatingan interdigital transducer or interdigitated transducer, or a resonator.The surface wave device includes an input electrode assembly 608. Theinput electrode assembly includes a plurality of spaced-apart elongatedinput electrode elements 610 electromechanically coupled with thepiezoelectric substrate. The plurality of elongated input electrodeelements are illustrated as elongated input electrode elements610.1-610.7. The input electrode assembly includes a first input signalbus 632 proximate to each of the plurality of input electrode elements,and electrically isolated therefrom. The input electrode assemblyincludes a first input-matrix of addressable switches 622. Eachaddressable switch of the first input-matrix is configured toelectrically couple a respective input electrode element of theplurality of input electrode elements with the first input signal bus.The input electrode assembly includes a second input signal bus 636proximate to each of the plurality of input electrode elements, andelectrically isolated therefrom. The input electrode assembly includes asecond input-matrix of addressable switches 626. Each addressable switchof the second input-matrix is configured to electrically couple arespective input electrode element of the plurality of input electrodeelements with the second input signal bus.

The surface wave device includes an output electrode assembly 609. Theoutput electrode assembly includes a plurality of spaced-apart elongatedoutput electrode elements 660 electromechanically coupled with thepiezoelectric substrate. The plurality of elongated output electrodeelements are illustrated as elongated output electrode elements660.1-660.7. The output electrode assembly includes a first outputsignal bus 672 proximate to each of the plurality of output electrodeelements, and electrically isolated therefrom. The output electrodeassembly includes a first output-matrix of individually addressableswitches 682. Each addressable switch of the first output-matrix isconfigured to electrically couple a respective output electrode elementof the plurality of output electrode elements with the first outputsignal bus. The output electrode assembly includes a second outputsignal bus 676 proximate to each of the plurality of output electrodeelements, and electrically isolated therefrom. The output electrodeassembly includes a second output-matrix of individually addressableswitches 681. Each addressable switch of the second output-matrix isconfigured to electrically couple a respective output electrode elementof the plurality of output electrode elements with the second outputsignal bus.

In an embodiment of the device 600, if the first input signal bus 632 iselectrically coupled to a first selected input electrode element (forexample the input electrode element 610.1) of the plurality of inputelectrode elements 610 by the respective addressable switches of thefirst input-matrix 622, and if the second input signal bus 636 iselectrically coupled to a second input electrode element (for examplethe input electrode element 610.3) of the plurality of input electrodeelements by the respective addressable switches of the secondinput-matrix 626, the second selected input electrode elements notincluding the first selected input electrode elements (i.e., disjointsets), the input electrode assembly 608 is configured to initiate inresponse to an input signal applied across the first input signal bus atthe first electrical contact 634 and the second input signal bus at thesecond electrical contact 638 surface waves on the piezoelectricsubstrate 607 having amplitude or phase characteristics that are afunction of the first selected input electrode element and the secondselected input electrode element. In an embodiment, the first selectedinput electrode element includes input electrode elements 610.1 and610.5, and the second selected input electrode element includes inputelectrode elements 610.3 and 610.7.

In an embodiment of the device 600, if the first output signal bus 672is electrically coupled to a first selected output electrode element(for example the output electrode element 660.1) of the plurality ofoutput electrode elements 660 by the respective addressable switches ofthe first output-matrix 682, and if the second output signal bus 676 iselectrically coupled to a second selected output electrode element (forexample the output electrode element 660.3) of the plurality of outputelectrode elements 660 by the respective addressable switches of thesecond output-matrix 681, the second selected output electrode elementnot including the first selected output electrode element, the outputelectrode assembly is configured to receive a surface acoustic waveinitiated by the input electrode assembly 608 and generate an electricalsignal in response thereto. The generated electrical signal havingamplitude or phase characteristics that are a function of the firstselected output electrode elements and the second selected outputelectrode elements. In an embodiment, the first selected outputelectrode element includes output electrode elements 660.1 and 650.5,and the second selected output electrode element includes outputelectrode elements 660.3 and 660.7.

In an embodiment, the plurality of spaced-apart elongated inputelectrode elements 610 have a center-to-center transverse spacing of notmore than λ/2 (where the surface wavelength λ on the piezoelectricsubstrate=acoustic wave velocity V_(SAW)/center frequency f₀ of thedevice). In an embodiment, the plurality of spaced-apart elongatedoutput electrode elements 660 have a center-to-center transverse spacingof not more than λ/2.

FIG. 8 illustrates an example surface acoustic wave device 700. Thesurface acoustic wave device includes a piezoelectric substrate 705. Thesurface acoustic wave device includes a configurable electrode assembly708. The configurable electrode assembly includes a plurality M ofspaced-apart elongated electrode sub-elements 710 electromechanicallycoupled with the piezoelectric substrate. The plurality M ofspaced-apart elongated electrode sub-elements 710, where M=16, areillustrated in FIG. 8 by electrode sub-elements 710.1-710.16. Theconfigurable electrode assembly includes a first signal bus 732proximate to each electrode sub-element of the plurality M of electrodesub-elements, and electrically isolated therefrom. The configurableelectrode assembly includes a first matrix of addressable switches 722.Each addressable switch of the first matrix is configured toelectrically couple a respective electrode sub-element of the pluralityM of electrode sub-elements with the first signal bus. The configurableelectrode assembly includes a second signal bus 736 proximate to eachelectrode sub-element of the plurality of electrode sub-elements, andelectrically isolated therefrom. The configurable electrode assemblyincludes a second matrix of addressable switches 726. Each addressableswitch of the second matrix is configured to electrically couple arespective electrode sub-element of the plurality M of electrodesub-elements with the second signal bus.

In an embodiment, the surface acoustic wave device 700 includes aRayleigh surface acoustic wave device. In an embodiment, the surfaceacoustic wave device includes a pseudo surface acoustic wave device. Inan embodiment, the first signal bus is carried by the piezoelectricsubstrate. In an embodiment, the second signal bus is carried by thepiezoelectric substrate.

In an embodiment, the plurality M of electrode sub-elements 710 includesa plurality of thin film electrode sub-elements. In an embodiment, theplurality M of electrode sub-elements includes a row of a plurality M ofelectrode sub-elements. In an embodiment, the plurality M of electrodesub-elements each have a width of less than λ/8 (where the surfaceacoustic wavelength λ on the piezoelectric substrate=acoustic wavevelocity V_(SAW)/center frequency f₀ of the device). In an embodiment,the plurality M of electrode sub-elements are arranged in a transverseorientation. In an embodiment, the individual electrode sub-elements ofthe plurality M of electrode sub-elements are not all parallel. In anembodiment, the plurality M of sub-elements are transversely arranged ina parallel or a slanted orientation.

In an embodiment, the first signal bus 732 orthogonally crosses eachelectrode sub-element of the plurality M of electrode sub-elements 710.In an embodiment, the first matrix of addressable switches are depositedon another substrate and the surface acoustic wave device includes afabrication consisting of sandwiching together the piezoelectricsubstrate and the another substrate bearing the switches in analignment.

FIG. 9 illustrates an embodiment 800 of the surface wave device 600 ofFIG. 8. If the first signal bus 732 is electrically coupled to a firstselection of at least two adjacent electrode sub-elements (illustratedas the electrode sub-elements 710.1 & 710.2, and 710.9 & 710.10) of theplurality of electrode sub-elements 710 by the respective addressableswitches of the first matrix 722, and if the second signal bus 736 iselectrically coupled to a second selection of at least two adjacentelectrode sub-elements (illustrated as the electrode sub-elements 710.5& 710.6, and 710.13 & 710.14) of the plurality of electrode sub-elementsby the respective addressable switches of the second matrix 736, thesecond selection of at least two adjacent electrode sub-elements notincluding any members of the first selection of at least two adjacentelectrode sub-elements (i.e., disjoint sets), the electrode assembly 708is configured in response to a signal applied across the first signalbus and the second signal bus to initiate surface waves on thepiezoelectric substrate 705 having amplitude or phase characteristicsthat are a function of the first selection of at least two adjacentelectrode sub-elements and the second selection of at least two adjacentelectrode sub-elements. In an embodiment, each finger defined by thefirst selection of at least two adjacent electrode sub-elements istransversely separated from each finger defined by the second selectionof at least two adjacent electrode sub-elements by a selected transversedistance. For example, the selected electrode sub-elements 710.1 & 710.2are transversely separated from the selected electrode sub-elements710.5 & 710.6 by electrode sub-elements 710.3 & 710.4. In an embodiment,the selected transverse distance is at least λ/4.

Returning to FIG. 8, in an embodiment, the surface wave device 800includes a switch controller 752 configured to operate an addressableswitch of the first matrix of addressable switches 722 and anaddressable switch of the second matrix of addressable switches 726. Inan embodiment, the device includes a configuration manager 754configured to (i) receive a request for a device characteristic, and(ii) select settings of the first and second matrices of addressableswitches of the configurable electrode assembly 705 implementing therequested device characteristic. In an embodiment, the request fordevice characteristic includes a request for an amplitude or phaseresponse by the surface acoustic wave device. In an embodiment, therequest for a device characteristic includes a request for an arbitrarydevice characteristic. In an embodiment, the request for a surfaceacoustic wave characteristic includes at least one of a requested centerfrequency f₀, bandwidth, or transfer function. In an embodiment, thedevice includes a receiver 756 configured to receive a request for adevice characteristic. In an embodiment, the request for the devicecharacteristic includes requested finger positions, length, spacing, orwidth. In an embodiment, the request for the device characteristicincludes requested settings of the first and second matrices ofaddressable switches of the configurable electrode assembly. In anembodiment, the request includes a request for a stored electrodepattern.

In an embodiment, an addressable switch of the first matrix ofaddressable switches 722 or the second matrix of addressable switches726 includes a one-time programmable switch. In an embodiment, anaddressable switch of the first matrix of addressable switches or thesecond matrix of addressable switches includes a programmable switch.

FIG. 10 illustrates an example operational flow 800 implemented in aconfigurable electrode assembly of a surface acoustic wave device. Theconfigurable electrode assembly having a plurality of spaced-apartelectrode sub-elements. After a start operation, the operational flowincludes a configuration operation 820. The configuration operationincludes selecting an electrode pattern producing a requested devicecharacteristic in the surface acoustic wave device. In an embodiment,the selecting may include selecting an electrode pattern predicted toproduce the surface acoustic wave characteristic in a configurableelectrode assembly. In an embodiment, the configuration operation may beimplemented using the configuration manager 754 described in conjunctionwith FIG. 8. In an embodiment, the configuration operation may befurther implemented in part or in whole using the processing unit 21 andone or more components of the thin computing device 20 described inconjunction with FIG. 1, or the processor 120 and one or more componentsof the general purpose computing device 100 described in conjunctionwith FIG. 2.

A first choosing operation 830 includes selecting settings of a firstmatrix of switches implementing the selected electrode pattern in afirst subset of adjacent electrode sub-elements of the plurality ofelectrode elements. In an embodiment, each switch of the first matrix ofswitches is configured to electrically couple a respective electrodesub-element of the plurality of electrode sub-elements with a firstsignal bus. In an embodiment, the first matrix of switches includes afirst matrix of addressable switches. In an embodiment, the firstchoosing operation may be implemented using the configuration manager754 described in conjunction with FIG. 8. In an embodiment, the firstchoosing operation may be further implemented in part or in whole usingthe processing unit 21 and one or more components of the thin computingdevice 20 described in conjunction with FIG. 1, or the processor 120 andone or more components of the general purpose computing device 100described in conjunction with FIG. 2. A first implementing operation 840includes electrically coupling the first subset of adjacent electrodesub-elements with a first signal bus by implementing the selectedsettings of the first matrix of switches. In an embodiment, theimplementing operation may be implemented using the switch controller752 described in conjunction with FIG. 8.

A second choosing operation 850 includes selecting settings of a secondmatrix of switches implementing the selected electrode pattern in asecond subset of adjacent electrode sub-elements of the plurality ofelectrode elements. The second subset of adjacent electrode sub-elementsnot including any members of the first subset of at least two adjacentelectrode sub-elements. In an embodiment, each switch of the secondmatrix of switches is configured to electrically couple a respectiveelectrode sub-element of the plurality of electrode sub-elements with asecond signal bus. In an embodiment, the second matrix of switchesincludes a second matrix of addressable switches. In an embodiment, thesecond choosing operation may be implemented using the configurationmanager 754 described in conjunction with FIG. 8. In an embodiment, thesecond choosing operation may be further implemented in part or in wholeusing the processing unit 21 and one or more components of the thincomputing device 20 described in conjunction with FIG. 1, or theprocessor 120 and one or more components of the general purposecomputing device 100 described in conjunction with FIG. 2. A secondimplementing operation 860 includes electrically coupling the secondsubset of adjacent electrode sub-elements with a second signal bus byimplementing the selected settings of the second matrix of switches. Inan embodiment, the second implementing operation may be implementedusing the switch controller 752 described in conjunction with FIG. 8.The operational flow includes an end operation.

In an embodiment, the operational flow 800 includes receiving 810 therequest for the acoustic wave device characteristic. In an embodiment,the plurality of sub-elements each have a width of less than λ/8 (wherethe surface acoustic wavelength λ on the piezoelectricsubstrate=acoustic wave velocity V_(SAW)/center frequency f₀ of thedevice). In an embodiment, the operational flow 800 includes applying aninput signal across the first signal bus and the second signal bus, andinitiating surface waves on the piezoelectric substrate having amplitudeor phase characteristics that are a function of the first subset of atleast two adjacent electrode sub-elements and the second subset of atleast two adjacent electrode sub-elements.

FIG. 11 illustrates a surface acoustic wave device 900. The surface wavedevice includes a piezoelectric substrate 905. The surface acoustic wavedevice includes an input electrode assembly and an output electrodeassembly. In an embodiment, once programmed or configured, the inputelectrode assembly electromechanically coupled with the piezoelectricsubstrate may be described as an input interdigital transducer. In anembodiment, once programmed or configured, the output electrode assemblyelectromechanically coupled with the piezoelectric substrate may bedescribed as an output interdigital transducer. The surface acousticwave device includes a surface wave propagating region 907 of thepiezoelectric substrate. In an embodiment, the surface wave propagatingregion is located in a propagation path between the input electrodeassembly and the output electrode assembly.

The surface acoustic wave device 900 includes a configurable electrodeassembly 908 and another electrode assembly, illustrated by a fixedelectrode assembly 909. In the surface acoustic wave device, the inputelectrode assembly or the output electrode assembly includes theconfigurable electrode assembly. In an embodiment, the another electrodeassembly may include another configurable electrode assembly or a fixedelectrode assembly. A fixed electrode assembly 909 is illustrated by afirst fixed electrode 982, and a second fixed electrode 986.

The configurable electrode assembly 908 includes a plurality M ofspaced-apart elongated electrode sub-elements 910 electromechanicallycoupled with the piezoelectric substrate 905. The plurality M ofspaced-apart elongated electrode sub-elements 910, where M=16, areillustrated by electrode sub-elements 910.1-910.16. The configurableelectrode assembly includes a first signal bus 932 proximate to eachelectrode sub-element of the plurality M of electrode sub-elements, andelectrically isolated therefrom. The configurable electrode assemblyincludes a first matrix of addressable switches 922. Each addressableswitch of the first matrix is configured to electrically couple arespective electrode sub-element of the plurality of electrodesub-elements with the first signal bus. The configurable electrodeassembly includes a second signal bus 936 proximate to each electrodesub-element of the plurality of electrode sub-elements, and electricallyisolated therefrom. The configurable electrode assembly includes asecond matrix of addressable switches 926. Each addressable switch ofthe second matrix is configured to electrically couple a respectiveelectrode sub-element of the plurality of electrode sub-elements withthe second signal bus.

In an embodiment, the surface acoustic wave device 908 includes aRayleigh surface acoustic wave device. In an embodiment, the surfaceacoustic wave device includes a pseudo surface acoustic wave device. Inan embodiment, the first signal bus is carried by the piezoelectricsubstrate. In an embodiment, the first signal bus is deposited on thepiezoelectric substrate. In an embodiment, the first signal bus crosseseach of the plurality of electrode elements. In an embodiment, thesecond signal bus is carried by the piezoelectric substrate. In anembodiment, the second signal bus is deposited on the piezoelectricsubstrate. In an embodiment, the second signal bus crosses each of theplurality of electrode elements.

In an embodiment, the plurality M of sub-elements 910 each have a widthof less than λ/8 (where the surface acoustic wavelength λ on thepiezoelectric substrate=acoustic wave velocity V_(SAW)/center frequencyf₀ of the device). In an embodiment, the plurality of sub-elements arearranged in a transverse orientation.

In an embodiment of the device 900, if the input electrode assemblyincludes the configurable electrode assembly 908, if the first signalbus 922 is electrically coupled to a first selection of at least twoadjacent electrode sub-elements (for example, the electrode sub-elements910.1 & 910.2) of the plurality M of electrode sub-elements 910 by therespective addressable switches of the first matrix 922, and if thesecond signal bus 926 is electrically coupled to a second selection ofat least two adjacent electrode sub-elements (for example, the electrodesub-elements 910.5 & 910.6) of the plurality M of electrode sub-elementsby the respective addressable switches of the second matrix 926, thesecond selection of at least two adjacent electrode sub-elements notincluding any members of the first selection of at least two adjacentelectrode sub-elements, the input electrode assembly is configured inresponse to a signal applied across the first signal bus and the secondsignal bus to initiate surface waves on the piezoelectric substrate 905having amplitude or phase characteristics that are a function of thefirst selection of at least two adjacent electrode sub-elements and thesecond selection of at least two adjacent electrode sub-elements. Inanother embodiment, the first selection of at least two adjacentelectrode sub-elements includes electrode sub-elements 910.1 & 910.2 and910.9 & 910.10, and the second selection of at least two adjacentelectrode sub-elements includes electrode sub-elements 910.5 & 910.6 and910.12 & 910.13. In an embodiment, each finger defined by the firstselection of at least two adjacent electrode sub-elements istransversely separated from each finger defined by the second selectionof at least two adjacent electrode sub-elements by a selected transversedistance. In an embodiment, the selected transverse distance is at leastλ/4.

In an embodiment of the device 900, if the output electrode assemblyincludes the configurable electrode assembly 908, if the first signalbus 922 is electrically coupled to a first selection of at least twoadjacent electrode sub-elements (for example, the electrode sub-elements910.1 & 910.2) of the plurality M of electrode sub-elements 910 by therespective addressable switches of the first matrix 922, and if thesecond signal bus 926 is electrically coupled to a second selection ofat least two adjacent electrode sub-elements (for example, the electrodesub-elements 910.5 & 910.6) of the plurality M of electrode sub-elementsby the respective addressable switches of the second matrix 926, thesecond selection of at least two adjacent electrode sub-elements notincluding any members of the first selection of at least two adjacentelectrode sub-elements, the output electrode assembly is configured toreceive a surface acoustic wave initiated by the input electrodeassembly and generate an electrical signal in response thereto acrossthe first signal bus and the second signal bus. In an embodiment, thegenerated electrical signal has amplitude or phase characteristics thatare a function of the first selection of at least two adjacent electrodesub-elements and the second selection of at least two adjacent electrodesub-elements.

In an embodiment, a length to width ratio of each of the plurality M ofelectrode sub-elements 910 is greater than 10:1. In an embodiment, alength to width ratio of each of the plurality M of electrodesub-elements is greater than 30:1. In an embodiment, a length to widthratio of each of the plurality M of electrode sub-elements is greaterthan 100:1. In an embodiment, the elongated electrode sub-elementsinclude electrically conductive elongated electrode sub-elements. In anembodiment, the elongated electrode sub-elements include metallicconductive elongated electrode sub-elements. In an embodiment, theelongated electrode sub-elements are fabricated on piezoelectricsubstrate. In an embodiment, the elongated electrode sub-elements aredeposited on piezoelectric substrate. In an embodiment, the plurality Mof elongated electrode sub-elements are each respectively transverselyspaced-apart or separated a distance of less than λ/16.

In an embodiment, a switch of the first matrix of addressable switches922 or the second matrix of addressable switches 926 includes asemiconductor switch. In an embodiment, a switch of the first matrix ofaddressable switches or the second matrix of addressable switchesincludes a floating-gate transistor. In an embodiment, a switch of thefirst matrix of addressable switches or the second matrix of addressableswitches includes a memory cell architecture having a floating-gatetransistor. In an embodiment, a switch of the first matrix ofaddressable switches or the second matrix of addressable switchesincludes a bistable semiconductor switch. In an embodiment, a switch ofthe first matrix of addressable switches or the second matrix ofaddressable switches includes a MOSFET transistor with a storagecapacitor. In an embodiment, a switch of the first matrix of addressableswitches or the second matrix of addressable switches includes MOSFETflash memory element or device. In an embodiment, a switch of the firstmatrix of addressable switches or the second matrix of addressableswitches includes MOSFET flash memory element or device with chargeinjected into gate wells and retained to provide static switching. In anembodiment, the switches of the first matrix of addressable switches andthe second matrix of addressable switches are included in a flash devicehaving addressable MOSFET transistor switches. Each addressable MOSFETtransistor switch is configured to electrically couple a respectiveelectrode sub-element with the first signal bus or the second signalbus. In an embodiment, the switches of the first matrix of addressableswitches and the second matrix of addressable switches are included in aflash device having addressable MOSFET transistor switches with chargeinjected into gate wells and retained to provide static switching. In anembodiment, the switches of the first matrix of addressable switches andthe second matrix of addressable switches are included in a devicehaving addressable memory elements. Each addressable memory element isconfigured to electrically couple a respective electrode sub-elementwith the first signal bus or the second signal bus. In an embodiment, anaddressable switch of the first matrix of addressable switches or thesecond matrix of addressable switches includes a one-time programmableswitch. In an embodiment, the one-time programmable switch includes aROM, or PROM device. In an embodiment, an addressable switch of thefirst matrix of addressable switches or the second matrix of addressableswitches includes a programmable switch. In an embodiment, theprogrammable switch includes bulk/block erasable and reprogrammableswitch. In an embodiment, the programmable switch includes EPROM orflash RAM device. In an embodiment, an addressable switch of the firstmatrix of addressable switches or the second matrix of addressableswitches includes a randomly accessible switch. In an embodiment, therandomly accessible switch includes a SRAM or DRAM device. In anembodiment, an addressable switch of the first matrix of addressableswitches or the second matrix of addressable switches includes a MEMSdevice. In an embodiment, a switch of the electrode assembly includes arefreshable CMOS device. In an embodiment, an addressable switch of thefirst matrix of addressable switches or the second matrix of addressableswitches includes a diode device. In an embodiment, an addressableswitch of the first matrix of addressable switches or the second matrixof addressable switches includes a bi-polar transistor. In anembodiment, the addressable switches of the first matrix of addressableswitches or the second matrix of addressable switches are addressedusing separate lines.

In an embodiment, the first matrix of addressable switches 922 and thesecond matrix of addressable switches 926 are configured to becollectively switched between a first arbitrary state and a secondarbitrary state in less than one-tenth of a second. In an embodiment,the first matrix of addressable switches and the second matrix ofaddressable switches are configured to be collectively switched betweena first arbitrary state and a second arbitrary state in less thanone-hundredth of a second. In an embodiment, the first matrix ofaddressable switches and the second matrix of addressable switches areconfigured to be collectively switched between a first arbitrary stateand a second arbitrary state in less than one millisecond. In anembodiment, the first matrix of addressable switches and the secondmatrix of addressable switches are configured to be collectivelyswitched between a first arbitrary state and a second arbitrary state inless than one microsecond. In an embodiment, the first matrix ofaddressable switches and the second matrix of addressable switches areconfigured to be collectively switched between a first arbitrary stateand a second arbitrary state in a time period that does notsignificantly affect mobile cellular voice communications. In anembodiment, the first matrix of addressable switches and the secondmatrix of addressable switches are configured to be collectivelyswitched between a first arbitrary state and a second arbitrary state ina time period that does not significantly affect mobile cellular datacommunications.

In an embodiment, the respective switches of the first matrix ofaddressable switches 922 and the second matrix of addressable switches926 are randomly accessible. For example, the respective switches mayinclude NOR type cells. In an embodiment, the first matrix ofaddressable switches and the second matrix of addressable switches areconfigured to be collectively accessible as a block. For example, therespective switches may include NOR or NAND type cells. In anembodiment, the switches of the first matrix of addressable switches areaccessible as a block. In an embodiment, the switches of the secondmatrix of addressable switches are accessible as a block.

In an embodiment, the configurable electrode assembly 908 includes areconfigurable electrode assembly. In an embodiment, the configurableelectrode assembly includes a one-time configurable electrode assembly.

In an embodiment, the configurable electrode assembly 908 includes athird signal bus crossing each electrode sub-element of the plurality Mof electrode sub-elements 910 and electrically isolated therefrom. Theconfigurable electrode assembly also includes a ground-matrix ofindividually addressable switches. Each addressable switch of theground-matrix is configured to electrically couple a respectiveelectrode sub-element of the plurality M of electrode sub-elements withthe third signal bus.

In an embodiment, the device 900 includes a switch controller 952configured to operate an addressable switch of the first matrix ofaddressable switches 922 and an addressable switch of the second matrixof addressable switches 926. In an embodiment, the switch controller isconfigured to operate an addressable switch of the first matrix ofaddressable switches and an addressable switch of the second matrix ofaddressable switches in response to signal specifying switch settingsselected to implement a device characteristic. In an embodiment, thedevice characteristic includes at least one of a requested centerfrequency f₀, bandwidth, impulse response, delay, or transfer function.In an embodiment, the switch controller is configured to operate thefirst matrix of addressable switches and the second matrix ofaddressable switches by writing a switching pattern for the first andsecond matrices of addressable switches to a buffered memory, and thensimultaneously transmitting the pattern to the addressed switches of thefirst matrix of addressable switches and the second matrix ofaddressable switches. In an embodiment, the buffered memory may includea double buffered memory or a ping-pong buffered memory. In anembodiment, the electrode assembly includes the switch controller 952coupled to an addressable switch of the first matrix of addressableswitches 922 and an addressable switch of the second matrix ofaddressable switches 926 of the configurable electrode assembly 908.

In an embodiment, the device 900 includes a configuration manager 954configured to (i) receive a request for a device characteristic, and(ii) select settings of the first and second matrices of addressableswitches of the configurable electrode assembly implementing therequested device characteristic. In an embodiment, the request for adevice characteristic includes a request for an amplitude or phaseresponse by the surface acoustic wave device. In an embodiment, therequest for a device characteristic includes a request for an arbitrarydevice characteristic. In an embodiment, the (ii) select settingsincludes (a) selecting an electrode pattern predicted to produce thedevice characteristic and (b) select settings of the first and secondmatrices of addressable switches implementing the selected electrodepattern in the electrode sub-elements 910. In an embodiment, theconfiguration manager is further configured to output a signalspecifying the selected settings. In an embodiment, the configurationmanager is further configured to select the settings in response alibrary 958 of at least two selectable device characteristics. In anembodiment, the configuration manager is configured to select thesettings in response to a modeled interaction of the electrodesub-elements. In an embodiment, the modeled interaction includes modeledstray capacitances. In an embodiment, the configuration manager isconfigured to select the settings in response to a measured interactionof the electrode sub-elements. In an embodiment, the measuredinteraction includes measured stray capacitances. In an embodiment, theconfiguration manager is configured to select the settings in responseto a measured characteristic of the surface acoustic wave device. In anembodiment, the measured characteristic includes supplying one or moretest settings, measuring a performance of the reconfigured electrodeassembly with the test settings applied to the electrode sub-elements,and altering the test settings in response to the measured performanceto converge on optimized selected settings implementing the requesteddevice characteristics. In an embodiment, the (ii) select settingsincludes select the settings in response to a feedback loop monitoring aperformance by the configurable electrode assembly with respect to therequested device characteristics, implementing a change in the settingsof the first and second matrices of addressable switches in response tothe monitored performance, and then evaluating the performance by theconfigurable electrode assembly with the changed settings with respectto the requested device characteristics. In an embodiment, the first andsecond matrices of addressable switches are fast enough to do trial runsduring a call or transmit/receive change over. In an embodiment, the(ii) select settings includes (a) select an electrode pattern predictedto produce the device characteristics and (b) select settings of thefirst and second matrices of addressable switches implementing theselected electrode pattern in the input electrode sub-elements. In anembodiment, the electrode pattern is selected in response to dataacquired during a trial configuration of the electrode sub-elements. Inan embodiment, the electrode pattern is selected responsive toapplication of a matrix factorization, or a matrix decompositionoptimization technique to data acquired during a trial configuration ofthe electrode sub-elements. In an embodiment, the electrode pattern isselected responsive to application of a gradient descent optimizationtechnique to data acquired during a trial configuration of the electrodesub-elements. In an embodiment, the electrode pattern is selectedresponsive to application of a singular value decomposition optimizationtechnique to data acquired during a trial configuration of the electrodesub-elements. In an embodiment, the electrode pattern is selectedresponsive to application of a principle component analysis optimizationtechnique to data acquired during a trial configuration of the electrodesub-elements. In an embodiment, the electrode pattern is selectedresponsive to application of a best available optimization techniqueselected from at least two available electrode patterns. In anembodiment, the configuration manager is further configured to run atleast two trial configurations of the electrode sub-elements.

In an embodiment, the device 900 includes a configuration manager 954configured to (i) receive a request for an device characteristic thatincludes at least one of a requested center frequency f₀, bandwidth, ortransfer function, and (ii) select settings of the first and secondmatrices of addressable switches (922 and 926) of the configurableelectrode assembly 908 implementing the requested device characteristic.In an embodiment, the device includes a library 958 of at least twoselectable device characteristics. Each selectable filter characteristicof the at least two selectable device characteristics includes settingsof the addressable switches of the first and second-matrices ofaddressable switches implementing a device characteristic that includesat least one of a requested center frequency f₀, bandwidth, or transferfunction. In an embodiment, the library may be provided by amanufacturer of the device, a third party, or saved data from severalprior runs of the actual device being operated.

In an embodiment, the device 900 includes a receiver 956 configured toreceive a request for the device characteristic. In an embodiment, therequest for the device characteristic includes requested fingerpositions, length, spacing, or width. In an embodiment, the request forthe device characteristic includes requested settings of the first andsecond matrices of addressable switches of the configurable electrodeassembly. In an embodiment, the request includes a request for a storedelectrode pattern.

FIG. 12 illustrates an example operational flow 1000 implemented in aconfigurable electrode assembly of a surface acoustic wave device. Theconfigurable electrode assembly having a plurality of spaced-apartelongated electrode sub-elements electromechanically coupled with apiezoelectric substrate. In an embodiment, the configurable electrodeassembly may include the configurable electrode assembly 908 describedin conjunction with FIG. 10.

After a start operation, the operational flow 1000 includes aconfiguration operation 1020. The configuration operation includesselecting an electrode pattern producing a requested surface acousticwave device characteristic in the configurable electrode assembly. In anembodiment, the configuration operation includes selecting an electrodepattern predicted to produce the device characteristic. In anembodiment, the configuration operation includes selecting an electrodepattern producing the device characteristic. In an embodiment, theconfigurable electrode assembly is an input electrode assembly or anoutput electrode assembly. In an embodiment, the configuration operationmay be implemented using the configuration manager 954 described inconjunction with FIG. 10. In an embodiment, the configuration operationmay be further implemented in part or in whole using the processing unit21 and one or more components of the thin computing device 20 describedin conjunction with FIG. 1, or the processor 120 and one or morecomponents of the general purpose computing device 100 described inconjunction with FIG. 2. A first choosing operation 1030 includesselecting settings of a first matrix of addressable switchesimplementing the selected electrode pattern in a first subset ofadjacent electrode sub-elements of the plurality of electrodesub-elements. In an embodiment, each switch of the first matrix ofswitches is configured to electrically couple a respective electrodesub-element of the plurality of electrode sub-elements with a firstsignal bus. In an embodiment, the first choosing operation may beimplemented using the configuration manager 954 described in conjunctionwith FIG. 10. In an embodiment, the first choosing operation may befurther implemented in part or in whole using the processing unit 21 andone or more components of the thin computing device 20 described inconjunction with FIG. 1, or the processor 120 and one or more componentsof the general purpose computing device 100 described in conjunctionwith FIG. 2. A first effecting operation 1040 includes electricallycoupling the first subset of adjacent electrode sub-elements with afirst signal bus by implementing the selected settings of the firstmatrix of addressable switches. The first effecting operation may beimplemented using the switch controller 952 described in conjunctionwith FIG. 10. A second choosing operation 1050 includes selectingsettings of a second matrix of addressable switches implementing theselected electrode pattern in a second subset of adjacent electrodesub-elements of the plurality of electrode sub-elements. The secondsubset of at least two adjacent electrode sub-elements not including anymembers of the first subset of at least two adjacent electrodesub-elements. In an embodiment, each switch of the second matrix ofswitches is configured to electrically couple a respective electrodesub-element of the plurality of electrode sub-elements with a secondsignal bus. The second choosing operation may be implemented using theconfiguration manager 954 described in conjunction with FIG. 10. In anembodiment, the second choosing operation may be further implemented inpart or in whole using the processing unit 21 and one or more componentsof the thin computing device 20 described in conjunction with FIG. 1, orthe processor 120 and one or more components of the general purposecomputing device 100 described in conjunction with FIG. 2. A secondeffecting operation 1060 includes electrically coupling the secondsubset of adjacent electrode sub-elements with a second signal bus byimplementing the selected settings of the second matrix of addressableswitches. The second effecting operation may be implemented using theswitch controller 952 described in conjunction with FIG. 10. Theoperational flow includes an end operation.

In an embodiment of the example operational flow 1000, the plurality ofsub-elements each have a width of less than λ/8 (where the surfaceacoustic wavelength λ on the piezoelectric substrate=acoustic wavevelocity V_(SAW)/center frequency f₀ of the device). In an embodiment,the plurality of spaced-apart electrode sub-elements have acenter-to-center transverse spacing of not more than λ/2.

In an embodiment, the operational flow 1000 includes receiving a requestfor the surface acoustic wave device characteristic. In an embodiment,the device characteristic includes at least one of a requested centerfrequency f₀, bandwidth, or transfer function. In an embodiment, theoperational flow includes applying an input signal across the firstsignal bus and the second signal bus, and initiating surface waves onthe piezoelectric substrate having amplitude or phase characteristicsthat are a function of the first subset of at least two adjacentelectrode sub-elements and the second subset of at least two adjacentelectrode sub-elements.

In an embodiment of the operational flow 1000, if the input electrodeassembly includes the configurable electrode assembly, the operationalflow includes applying an input signal across the first signal bus andthe second signal bus, and initiating surface waves on the piezoelectricsubstrate having amplitude or phase characteristics that are a functionof the first subset of at least two adjacent electrode sub-elements andthe second subset of at least two adjacent electrode sub-elements. In anembodiment of the operational flow, if the output electrode assemblyincludes the configurable electrode assembly, the operational flowincludes receiving a surface acoustic wave initiated by the inputelectrode assembly and generating an electrical signal in responsethereto. The generated electrical signal having amplitude or phasecharacteristics that are a function of the first subset of at least twoadjacent electrode sub-elements and the second subset of at least twoadjacent electrode sub-elements.

FIG. 13 illustrates an example surface acoustic wave device 1100. Thesurface acoustic wave device includes a piezoelectric substrate 1105.The surface acoustic wave device includes a configurable electrodeassembly 1108. The configurable electrode assembly includes a stackassemblage of N instances of electrode assembly sub-units. The Ninstances of electrode assembly sub-units are illustrated as electrodeassembly sub-units 1140.1-1140.N. Each electrode assembly sub-unitincluding a plurality M of spaced-apart elongated electrode sub-elementselectromechanically coupled with the piezoelectric substrate. Theplurality M of spaced-apart elongated electrode sub-elements of anelectrode assembly sub-unit are illustrated in FIG. 13 as electrodesub-elements 1110.1-1110.M. For example, an embodiment of an electrodeassembly sub-unit is described in conjunction with FIG. 8 by theconfigurable electrode assembly 708 where M=16. See also FIG. 11. Eachelectrode assembly sub-unit of the configurable electrode assemblyincludes a first signal bus crossing each of the electrode sub-elementsof the plurality M of electrode sub-elements and is electricallyisolated therefrom. For example, the first signal bus of the electrodeassembly sub-unit 1140.1 is illustrated as a first signal bus 1132.1.Each electrode assembly sub-unit of the configurable electrode assemblyincludes a second signal bus crossing each of the electrode sub-elementsof the plurality M of electrode sub-elements and is electricallyisolated therefrom. For example, the second signal bus of the electrodeassembly sub-unit 1140.1 is illustrated as a second signal bus 1136.1.For example, an embodiment of the first signal bus and the second signalbus of an electrode assembly sub-unit is described in conjunction withFIG. 8 as the first signal bus 732 and the second signal bus 736 of theconfigurable electrode assembly 708. Each electrode assembly sub-unit ofthe configurable electrode assembly includes a first matrix ofindividually addressable switches. Each addressable switch of the firstmatrix is configured to electrically couple a respective electrodesub-element of the plurality of electrode sub-elements with the firstsignal bus. Each electrode assembly sub-unit of the configurableelectrode assembly includes a second matrix of individually addressableswitches. Each addressable switch of the second matrix is configured toelectrically couple a respective electrode sub-element of the pluralityof electrode sub-elements with the second signal bus. For example, anembodiment of the first matrix of individually addressable switches andthe second matrix of individually addressable switches of an electrodeassembly sub-unit are described in conjunction with FIG. 8 as the firstmatrix of individually addressable switches 722 and the second matrix ofindividually addressable switches 726 of the configurable electrodeassembly 708. For example, an embodiment of the first matrix ofindividually addressable switches and the second matrix of individuallyaddressable switches of an electrode assembly sub-unit are described inconjunction with FIG. 3 as the first matrix of individually addressableswitches 222 and the second matrix of individually addressable switches226 of the configurable electrode assembly 208.

For example, the surface acoustic wave device 1100 may include anM=1000×N=100 array of elongated electrode sub-elements. In thisembodiment, the surface acoustic wave device could approximate aninterdigital transducer with fifty pairs of opposing fingers (which is atotal of 100 fingers plus space between them) with each individualfinger ˜5 electrodes wide. For example, the widths could vary +/− 1 toallow the average spacing to be selected to within 0.1%. For example,finger length could be controlled to +/− 1%. In this example, therewould be 100 sets of signal busses. This example provides an anticipatedability to generate a reasonable approximation of an arbitraryinterdigital transducer pattern.

In an embodiment, the surface acoustic wave device 1100, includes aRayleigh surface acoustic wave device. In an embodiment, the surfaceacoustic wave device includes a pseudo surface acoustic wave device. Inan embodiment, the first signal bus is carried by the piezoelectricsubstrate. In an embodiment, the first signal bus is deposited on thepiezoelectric substrate. In an embodiment, the first signal bus crosseseach of the electrode sub-elements of the plurality electrodesub-elements. In an embodiment, the second signal bus is carried by thepiezoelectric substrate. In an embodiment, the second signal bus isdeposited on the piezoelectric substrate. In an embodiment, the secondsignal bus crosses each of the plurality of electrode elements.

In an embodiment of surface acoustic wave device 1100, the plurality Mof electrode sub-elements include a row of a plurality M ofsub-elements. In an embodiment, the plurality of electrode sub-elementseach have a width of less than λ/8 (where the surface acousticwavelength λ on the piezoelectric substrate=acoustic wave velocityV_(SAW)/center frequency f₀ of the device). In an embodiment, theplurality of electrode sub-elements are arranged in a transverseorientation.

In an embodiment of surface acoustic wave device 1100, if a first subsetof at least two adjacent electrode sub-elements of the plurality M ofelectrode sub-elements of a first subset of consecutive instances of theN instances of the plurality electrode assembly sub-units areelectrically coupled with their respective first signal buses by theirrespective first addressable switches, and if a second subset of atleast two adjacent electrode sub-elements of the plurality M ofelectrode sub-elements of a second subset of consecutive instances ofthe N instances of the plurality electrode assembly sub-units areelectrically coupled with their respective second signal buses by theirrespective second addressable switches, the second subset of consecutiveinstances of at least two adjacent electrode sub-elements not includingany members of the first subset of consecutive instances of at least twoadjacent electrode sub-elements, the electrode assembly is configured toinitiate surface waves on the piezoelectric substrate 1105 in responseto a signal applied across the respective first signal buses and therespective second signal buses. In an embodiment, each finger defined bythe first subset of at least two consecutive instances of adjacentelectrode sub-elements is transversely separated from each fingerdefined by the second subset of at least two consecutive instances ofadjacent electrode sub-elements by a selected transverse distance. In anembodiment, the selected transverse distance is at least λ/4.

A partial example of the first subset of at least two adjacent electrodesub-elements of the plurality M of electrode sub-elements is illustratedin the embodiment 800 described in conjunction with FIG. 9. Theembodiment 800 illustrates the surface wave device 600 of FIG. 8 where afirst subset of at least two adjacent electrode sub-elements 710.1 &710.2, and 710.9 & 710.10 of the plurality of electrode sub-elements 710are electrically coupled to the first signal bus 732. In this embodimentof the surface wave device 1100, the surface wave device 1100 may bevisualized as a stack or assemblage of at least two consecutiveinstances of the surface wave device 600 where the same first subset ofat least two adjacent electrode sub-elements 710.1 & 710.2, and 710.9 &710.10 of the plurality of electrode sub-elements 710 are electricallycoupled to their respective first signal bus 732 in each of the at leasttwo consecutive instances of the N instances of electrode assemblysub-units. Similarly, a partial example of the second subset of at leasttwo adjacent electrode sub-elements of the plurality M of electrodesub-elements is illustrated by the surface wave device 600 of FIG. 8where a second subset of at least two adjacent electrode sub-elements710.5 & 710.6, and 710.13 & 710.14 of the plurality of electrodesub-elements 710 are electrically coupled to the second signal bus 736.In this embodiment of the surface wave device 1100, the surface wavedevice 1100 may be visualized as a stack or assemblage of at least twoconsecutive instances of the N instances of electrode assembly sub-unitsof the surface wave device 600 where the same second subset of at leasttwo adjacent electrode sub-elements 710.5 & 710.6, and 710.13 & 710.14of the plurality of electrode sub-elements 710 are electrically coupledto their respective second signal bus 736 in each of the at least twoconsecutive instances.

In an embodiment, the surface wave device 1100 includes a switchcontroller 1152 configured to operate an individually addressable switchof the first matrix of addressable switches and an individuallyaddressable switch of the second matrix of addressable switches of eachof the N instances of the electrode assembly sub-unit. In an embodiment,the switch controller is fabricated on the substrate 1105.

In an embodiment, the surface wave device 1100 includes a configurationmanager 1154 configured to (i) receive a request for a devicecharacteristic, and (ii) select settings of the first andsecond-matrices of addressable switches of each of the N instances ofthe electrode assembly sub-units implementing the requested devicecharacteristic. In an embodiment, the device characteristic includes atleast one of a requested center frequency f₀, bandwidth, or transferfunction. In an embodiment, the request for device characteristicincludes a request for an amplitude or phase response by the surfaceacoustic wave device. In an embodiment, the request for devicecharacteristic includes a request for an arbitrary devicecharacteristic.

In an embodiment, the surface wave device 1100 includes a first signaldistribution bus 1138 coupled to each first signal bus of the Ninstances of the electrode assembly sub-unit. In an embodiment, thefirst signal distribution bus is carried by the piezoelectric substrate.In an embodiment, the first signal distribution bus is fabricated on thepiezoelectric substrate. In an embodiment, the surface wave deviceincludes a second signal distribution bus 1139 coupled to each secondsignal bus of the N instances of the electrode assembly sub-unit. In anembodiment, the second signal distribution bus is carried by thepiezoelectric substrate. In an embodiment, the second signaldistribution bus is fabricated on the piezoelectric substrate.

In an embodiment, the surface wave device 1100 includes a receiverconfigured to receive a request for a device characteristic.

FIG. 14 illustrates an example surface acoustic wave device 1200. Thesurface acoustic wave device includes a piezoelectric substrate 1205.The surface acoustic wave device includes an input electrode assemblyand an output electrode assembly. In an embodiment, once programmed orconfigured, the input electrode assembly electromechanically coupledwith the piezoelectric substrate may be described as an inputinterdigital transducer. In an embodiment, once programmed orconfigured, the output electrode assembly electromechanically coupledwith the piezoelectric substrate may be described as an outputinterdigital transducer. The surface acoustic wave device includes asurface wave propagating region 1207 of the piezoelectric substrate. Inan embodiment, the surface wave propagating region is located in apropagation path between the input electrode assembly and the outputelectrode assembly.

The surface acoustic wave device 1200 includes a configurable electrodeassembly 1208 and another electrode assembly, illustrated by a fixedelectrode assembly 1209. In the surface acoustic wave device, the inputelectrode assembly or the output electrode assembly includes theconfigurable electrode assembly. In an embodiment, the another electrodeassembly may include another configurable electrode assembly or a fixedelectrode assembly. A fixed electrode assembly 1209 is illustrated by afirst fixed electrode 1282, and a second fixed electrode 1286.

The configurable electrode assembly 1208 includes a stack assemblage1240 of N instances of electrode assembly sub-units. The N instances ofelectrode assembly sub-units are illustrated as electrode assemblysub-units 1240.1-1240.N. Each electrode assembly sub-unit including aplurality M of spaced-apart elongated electrode sub-elements 1210electromechanically coupled with the piezoelectric substrate 1205. Theplurality M of spaced-apart elongated electrode sub-elements of anelectrode assembly sub-unit are illustrated in FIG. 14 as electrodesub-elements 1210.1-1210.M. For example, an embodiment of an electrodeassembly sub-unit is described in conjunction with FIG. 8 by theconfigurable electrode assembly 708 where M=16. See also FIG. 11. Eachelectrode assembly sub-unit of the configurable electrode assemblyincludes a first signal bus proximate to each of the electrodesub-elements of the plurality M of electrode sub-elements andelectrically isolated therefrom. For example, the first signal bus ofthe electrode assembly sub-unit 1240.1 is described in conjunction withFIG. 13 by the first signal bus 1132.1. Each electrode assembly sub-unitof the configurable electrode assembly includes a second signal busproximate to each of the electrode sub-elements of the plurality M ofelectrode sub-elements and electrically isolated therefrom. For example,the second signal bus of the electrode assembly sub-unit 1240.1 isdescribed in conjunction with FIG. 13 by the second signal bus 1136.1.For example, an embodiment of the first signal bus and the second signalbus of an electrode assembly sub-unit is described in conjunction withFIG. 8 as the first signal bus 732 and the second signal bus 736 of theconfigurable electrode assembly 708. Each electrode assembly sub-unit ofthe configurable electrode assembly 1208 includes a first matrix ofindividually addressable switches. Each addressable switch of the firstmatrix is configured to electrically couple a respective electrodesub-element of the plurality M of electrode sub-elements with the firstsignal bus. Each electrode assembly sub-unit of the configurableelectrode assembly includes a second matrix of individually addressableswitches. Each addressable switch of the second matrix is configured toelectrically couple a respective electrode sub-element of the pluralityM of electrode sub-elements with the second signal bus. For example, anembodiment of the first matrix of individually addressable switches andthe second matrix of individually addressable switches of an electrodeassembly sub-unit are described in conjunction with FIG. 8 as the firstmatrix of individually addressable switches 722 and the second matrix ofindividually addressable switches 726 of the configurable electrodeassembly 708. For example, an embodiment of the first matrix ofindividually addressable switches and the second matrix of individuallyaddressable switches of an electrode assembly sub-unit are described inconjunction with FIG. 3 as the first matrix of individually addressableswitches 222 and the second matrix of individually addressable switches226 of the configurable electrode assembly 208.

For example, the surface acoustic wave device 1200 may include anM=1000×N=100 array of elongated electrode sub-elements. In thisembodiment, the surface acoustic wave device is expected to approximatean interdigital transducer with fifty pairs of opposing fingers (whichis a total of 100 fingers plus space between them) with each individualfinger ˜5 electrodes wide. For example, the widths could vary +/− 1 toallow the average spacing to be selected to within 0.1%. For example,finger length could be controlled to +/− 1%. In this example, therewould be 100 sets of signal busses. This example provides an anticipatedability to generate a reasonable approximation of an arbitraryinterdigital transducer pattern.

In an embodiment, the surface acoustic wave device 1200 includes aRayleigh surface acoustic wave device. In an embodiment, the surfaceacoustic wave device includes a pseudo surface acoustic wave device. Inan embodiment, the surface acoustic wave device includes a surface wavepropagating region 1207 of the piezoelectric substrate 1205 located in apropagation path between the input electrode assembly and the outputelectrode assembly. In an embodiment, the first signal bus is carried bythe piezoelectric substrate. In an embodiment, the first signal bus isdeposited on the piezoelectric substrate. In an embodiment, the firstsignal bus is formed on the piezoelectric substrate. In an embodiment,the first signal bus crosses each of the plurality of electrodeelements. In an embodiment, the second signal bus is carried by thepiezoelectric substrate. In an embodiment, the second signal bus isdeposited on the piezoelectric substrate. In an embodiment, the secondsignal bus is formed on the piezoelectric substrate. In an embodiment,the second signal bus crosses each of the plurality of electrodeelements. In an embodiment of the surface acoustic wave device 1200,each electrode sub-element of the plurality M of electrode sub-elements1210 has a width of less than λ/8 (where the surface acoustic wavelengthλ on the piezoelectric substrate=acoustic wave velocity V_(SAW)/centerfrequency f₀ of the device). In an embodiment, the plurality M of theelectrode sub-elements are arranged in a transverse orientation.

In an embodiment, the plurality M of electrode sub-elements 1210 of afirst instance of an electrode assembly sub-unit of the stack assemblagehave a respective end-to-end alignment with the plurality M of electrodesub-elements of an adjacent second instance of an electrode assemblysub-unit of the stack assemblage. In an embodiment, the electrodesub-elements of each instance of an electrode assembly sub-unit of thestack assemblage have a respective end-to-end alignment with theelectrode sub-elements of every other instance of an electrode assemblysub-unit of the stack assemblage. In an embodiment, the stack assemblage1240 of the N instances of the electrode assembly sub-units includeseach electrode sub-element of the plurality M of electrode sub-elements1210 with a same M index number in a common alignment. For example, acenterline of an elongated axis of electrode sub-element 1210.5 ofinstance 1240.50 has a centerline in a common alignment with centerlineof an elongated axis of electrode sub-element 1210.5 of instance1240.51. In an embodiment, the common alignment includes a centerline ofan elongated length of each electrode sub-element with a same M indexnumber aligned on a common centerline.

In an embodiment of the surface acoustic wave device 1200, if the inputelectrode assembly includes the configurable electrode assembly 1208, ifa first subset of at least two adjacent electrode sub-elements of theplurality M of electrode sub-elements of a first subset of consecutiveinstances of the N instances of the plurality electrode assemblysub-units are electrically coupled with their respective first signalbuses by their respective first addressable switches, and if a secondsubset of at least two adjacent electrode sub-elements of the pluralityM of electrode sub-elements of a second subset of consecutive instancesof the N instances of the plurality M of electrode assembly sub-unitsare electrically coupled with their respective second signal buses bytheir respective second addressable switches, the second subset ofconsecutive instances of at least two adjacent electrode sub-elementsnot including any members of the first subset of consecutive instancesof at least two adjacent electrode sub-elements, the input electrodeassembly is configured to initiate surface waves on the piezoelectricsubstrate 1205 in response to a signal applied across the respectivefirst signal buses and the respective second signal buses. In anembodiment, the second selection of at least two adjacent electrodesub-elements are separated from the first selection of at least twoadjacent electrode sub-elements by a selected transverse distance. In anembodiment, the selected transverse distance is at least λ/4. In anembodiment, the surface waves have amplitude or phase characteristicsthat are a function of the first subset of at least two adjacentelectrode sub-elements and the second subset of at least two adjacentelectrode sub-elements. In an embodiment, the first selection of atleast two adjacent input electrode sub-elements of the plurality ofelectrode sub-elements includes at least five adjacent electrodesub-elements. In an embodiment, the configurable electrode assembly isconfigured to generate mechanical strains in the substrate in responseto electrical signal applied across the respective first signal busesand the respective second signal buses.

A partial example of the first subset of at least two adjacent electrodesub-elements of the plurality M of electrode sub-elements 1210 isillustrated in the embodiment 800 of the surface wave device 600described in conjunction with FIGS. 8 and 9. The embodiment 800 of thesurface wave device 600 illustrates in FIG. 9 includes a first subset ofat least two adjacent electrode sub-elements 710.1 & 710.2, and 710.9 &710.10 of the plurality of electrode sub-elements 710 electricallycoupled to the first signal bus 732. In the embodiment of the surfacewave device 1200, the surface wave device 1200 may be visualized as astack or assemblage of at least two consecutive instances of the surfacewave device 600 where the same first subset of at least two adjacentelectrode sub-elements 710.1 & 710.2, and 710.9 & 710.10 of theplurality of electrode sub-elements 710 are electrically coupled totheir respective first signal bus 732 in each of the at least twoconsecutive instances of the N instances of electrode assemblysub-units. Similarly, a partial example of the second subset of at leasttwo adjacent electrode sub-elements of the plurality M of electrodesub-elements is illustrated by the surface wave device 600 of FIG. 8where a second subset of at least two adjacent electrode sub-elements710.5 & 710.6, and 710.13 & 710.14 of the plurality of electrodesub-elements 710 are electrically coupled to the second signal bus 736.In the embodiment of the surface wave device 1200, the surface wavedevice 1200 may be visualized as a stack or assemblage of at least twoconsecutive instances of the N instances of electrode assembly sub-unitsof the surface wave device 600 where the same second subset of at leasttwo adjacent electrode sub-elements 710.5 & 710.6, and 710.13 & 710.14of the plurality of electrode sub-elements 710 are electrically coupledto their respective second signal bus 736 in each of the at least twoconsecutive instances.

In an embodiment of the surface acoustic wave device 1200, if the outputelectrode assembly includes the configurable electrode assembly 1208, ifa first subset of at least two adjacent electrode sub-elements of theplurality M of electrode sub-elements of a first subset of consecutiveinstances of the N instances of the plurality electrode assemblysub-units are electrically coupled with their respective first signalbuses by their respective first addressable switches, and if a secondsubset of at least two adjacent electrode sub-elements of the pluralityM of electrode sub-elements of a second subset of consecutive instancesof the N instances of the plurality electrode assembly sub-units areelectrically coupled with their respective second signal buses by theirrespective second addressable switches, the second subset of consecutiveinstances of at least two adjacent electrode sub-elements not includingany members of the first subset of consecutive instances of at least twoadjacent electrode sub-elements, the output electrode assembly isconfigured to receive a surface wave initiated by the input electrodeassembly and generate an electrical signal in response thereto acrossthe respective first signal buses and the respective second signalbuses. In an embodiment, the generated electrical signal has amplitudeor phase characteristics that are a function of the first subset of atleast two adjacent electrode elements and the second subset of at leasttwo adjacent electrode elements. In an embodiment, the first subset ofat least two adjacent electrode sub-elements of the plurality M ofelectrode sub-elements includes at least five adjacent electrodesub-elements.

In an embodiment of the surface acoustic wave device 1200, the inputelectrode assembly 1208 includes a first configurable electrode assemblyand the output electrode assembly includes a second configurableelectrode assembly.

In an embodiment of the configurable electrode assembly, the plurality Mof elongated electrode sub-elements 1210 are fabricated on thepiezoelectric substrate 1205. In an embodiment, the plurality M ofelectrode sub-elements are each respectively transversely spaced-apart adistance of less than λ/16. In an embodiment, the plurality M ofelongated electrode sub-elements includes at least 500 instances of theelongated electrode sub-elements. In an embodiment, the plurality M ofelongated electrode sub-elements includes at least 1000 instances of theelongated electrode sub-elements. In an embodiment, the stack assemblageof N instances of an electrode assembly sub-unit includes at least 50instances of the electrode assembly sub-units. In an embodiment, thestack assemblage of N instances of an electrode assembly sub-unitincludes at least 100 instances of the electrode assembly sub-units. Inan embodiment, a length to width ratio of each of the plurality ofelongated electrode sub-elements is greater than 10:1. In an embodiment,a length to width ratio of each of the plurality of elongated electrodesub-elements is greater than 30:1. In an embodiment, a length to widthratio of each of the plurality of elongated electrode sub-elements isgreater than 100:1. In an embodiment, the assemblage includes anassemblage where the N instances of the electrode assembly sub-units areend to end spaced apart less than λ/8. In an embodiment, the assemblageincludes an assemblage where the N instances of the electrode assemblysub-units are arranged in N generally parallel rows of the electrodeassembly sub-units.

In an embodiment, an addressable switch of the first matrix ofindividually addressable switches or the second matrix of individuallyaddressable switches includes a semiconductor switch. For example, anembodiment of the first matrix of individually addressable switches andthe second matrix of individually addressable switches of an electrodeassembly sub-unit are described in conjunction with FIG. 8 as the firstmatrix of individually addressable switches 722 and the second matrix ofindividually addressable switches 726 of the configurable electrodeassembly 708. In an embodiment, an addressable switch of the firstmatrix of individually addressable switches or the second matrix ofindividually addressable switches includes a semiconductor switch. In anembodiment, an addressable switch of the first matrix of individuallyaddressable switches or the second matrix of individually addressableswitches includes a floating-gate transistor. In an embodiment, thefirst matrix of individually addressable switches and the second matrixof individually addressable switches are included in a flash devicehaving addressable MOSFET transistor switches. Each addressable MOSFETtransistor switch is configured to electrically couple a respectiveelectrode sub-element with the first signal bus or the second signalbus. In an embodiment, the first matrix of individually addressableswitches and the second matrix of individually addressable switches areincluded in a device having addressable memory elements. Eachaddressable memory element configured to electrically couple arespective electrode sub-element with the first signal bus or the secondsignal bus. In an embodiment, an addressable switch of the first matrixof individually addressable switches or the second matrix ofindividually addressable switches includes a MEMS device. In anembodiment, an addressable switch of the first matrix of individuallyaddressable switches or the second matrix of individually addressableswitches includes a refreshable CMOS device. In an embodiment, anaddressable switch of the first matrix of individually addressableswitches or the second matrix of individually addressable switchesincludes a one-time programmable switch. In an embodiment, anaddressable switch of the first matrix of addressable switches or thesecond matrix of addressable switches includes a reprogrammable switch.In an embodiment, an addressable switch of the first matrix ofindividually addressable switches or the second matrix of individuallyaddressable switches includes a randomly accessible switch. In anembodiment, an individual addressable switch of the first matrix ofindividually addressable switches or the second matrix of individuallyaddressable switches is addressable by application of a switching signalacross an address line of the switch and a signal bus coupled to theindividual addressable switch. In an embodiment, an individualaddressable switch of the first matrix of individually addressableswitches or the second matrix of individually addressable switches isaddressable by application of a switching signal across a signal buscoupled to the individual addressable switch and an electrodesub-element coupled with the individual addressable switch. In anembodiment, an addressable switch is controlled using an address linecoupled to the addressable switch and a signal bus. In an embodiment,the first matrix of addressable switches and the second matrix ofaddressable switches are configured to be collectively switched betweena first arbitrary state and a second arbitrary state in less thanone-hundredth of a second.

In an embodiment of the device 1200, at least two electrode sub-elementsare arranged in a column and electrically coupled in a configurationwhere they are electrically isolated in response to an appliedradiofrequency signal and electrically coupled in response to theswitching signal. In an embodiment, the at least two electrodesub-elements are arranged in a column are electrically coupled by aresistor, inductor, or breakdown diode in response to the switchingsignal and electrically isolated in response to the appliedradiofrequency signal. For example, at least two electrode sub-elementsarranged in a column may be electrically coupled or decoupled inresponse to an applied DC voltage, or a relatively high-voltage pulse(higher than the maximum RF-signal voltage) between one bus and oneelectrode to close or open the switch at their intersection. Forexample, at least two electrode sub-elements arranged in a column may beelectrically coupled or decoupled using the electrodes and bussesthemselves at the memory address lines. For instance, all the segmentsof one electrode “column” could be electrically connect together, e.g.with resistors or inductors or breakdown diodes, so that they would beelectrically separate for an RF signal, but connected together for thepurposes of programming the switches. For example, a low frequencysignal may be used to drive buses and program the switches. In anembodiment, an addressable switch is controlled using an address linecoupled to the addressable switch and a signal bus. In an embodiment,the first matrix of addressable switches and the second matrix ofaddressable switches are configured to be collectively switched betweena first arbitrary state and a second arbitrary state in less thanone-hundredth of a second.

In an embodiment, each electrode sub-assembly of the plurality M ofelectrode sub-assemblies 1210 includes a third signal bus crossing eachelectrode sub-element of the plurality of electrode sub-elements 1210;and a ground-matrix of individually addressable switches. Eachaddressable switch of the ground-matrix is configured to electricallycouple a respective electrode sub-element of the plurality M ofelectrode sub-elements with the third signal bus.

In an embodiment, the device 1200 includes a first signal distributionbus coupled to each first signal bus of the N instances of the electrodeassembly sub-unit. In an embodiment, the first signal distribution busis carried by the piezoelectric substrate. In an embodiment, the firstsignal distribution bus is fabricated on the piezoelectric substrate. Inan embodiment, the device includes a second signal distribution buscoupled to each second bus of the N instances of the electrode assemblysub-unit. In an embodiment, the second signal distribution bus iscarried by the piezoelectric substrate. In an embodiment, the secondsignal distribution bus is fabricated on the piezoelectric substrate. Anembodiment of the first and second signal distribution buses isdescribed in conjunction with FIG. 13 with reference to first signaldistribution bus 1138 and second signal distribution bus 1139. In anembodiment, the device includes a first signal distribution bus coupledto each first signal bus of the N instances of the input electrodeassembly sub-unit; and a second signal distribution bus coupled to eachsecond signal bus of the N instances of the input electrode assemblysub-unit. In an embodiment, the device includes a switching bus coupledto each addressable switch of the first matrix of addressable switchesor of the second-matrix of addressable switches. An embodiment ofswitching bus includes the first switching bus 224 or the secondswitching bus 228 described in conjunction with FIG. 3.

In an embodiment of the device 1200, the addressable switches of theconfigurable electrode assembly 1208 are configured to be collectivelyswitched between a first arbitrary state and a second arbitrary state inless than one-tenth of a second. In an embodiment of the device, theaddressable switches of the configurable electrode assembly areconfigured to be collectively switched between a first arbitrary stateand a second arbitrary state in less than one-hundredth of a second. Inan embodiment of the device, the addressable switches of theconfigurable electrode assembly are configured to be collectivelyswitched between a first arbitrary state and a second arbitrary state inless than one millisecond. In an embodiment of the device, addressableswitches of the configurable electrode assembly are configured to becollectively switched between a first arbitrary state and a secondarbitrary state in less than one microsecond.

In an embodiment, the configurable electrode assembly 1208 includes areconfigurable electrode assembly. In an embodiment, the configurableelectrode assembly includes a one-time configurable electrode assembly.

In an embodiment, the device 1200 includes a switch controller 1252configured to operate an individually addressable switch of the firstmatrix of addressable switches and an individually addressable switch ofthe second matrix of addressable switches of each of the N instances ofthe electrode assembly sub-units. In an embodiment, the switchcontroller is configured to operate the individually addressableswitches in response to a signal specifying switch settings selected toimplement a device characteristic. In an embodiment, the devicecharacteristic includes at least one of a requested center frequency f₀,bandwidth, or transfer function. In an embodiment, the switch controlleris configured to initiate a permanent one-time programming of theindividually addressable switches. In an embodiment, the switchcontroller is configured to initiate a state change of individuallyaddressable switches. For example, a state change may include changingan individual switch or group of switches from a conducting state to anon-conducting state, or versa visa.

In an embodiment, the device 1200 includes a switch controller 1252configured to operate an individually addressable switch of the firstmatrix of addressable switches and an individually addressable switch ofthe second matrix of addressable switches of each of the N instances ofthe electrode assembly sub-unit.

In an embodiment, the device 1200 includes a configuration manager 1254configured to (i) receive a request for a device characteristic, and(ii) select settings of the first and second-matrices of addressableswitches of each of the N instances of the electrode assembly sub-unitsimplementing the requested device characteristic. In an embodiment, thedevice characteristic includes an amplitude or phase response. In anembodiment, the device characteristic includes an arbitrary devicecharacteristic. In an embodiment, the (ii) select settings may beimplemented using a selection algorithm. In an embodiment, the (ii)select settings includes (a) select an electrode pattern predicted orlikely to produce the device characteristic and (b) select settings ofthe first and second-matrices of addressable switches of each of the Ninstances of the electrode assembly sub-units implementing the selectedelectrode pattern in the electrode sub-elements. In an embodiment, theconfiguration manager is configured to select an optimized electrodepattern. In an embodiment, the configuration manager is configured toselect the electrode pattern in response to a library 1256 of at leasttwo selectable device characteristics. In an embodiment, theconfiguration manager is configured to select the electrode pattern inresponse to a modeled interaction of the electrode sub-elements. In anembodiment, the modeled interaction includes stray capacitances. In anembodiment, the configuration manager is configured to select theelectrode pattern response to a measured interaction of the electrodesub-elements. In an embodiment, the configuration manager is configuredto select an electrode pattern in response to a closed-loopconfiguration. The selection including supplying one or more testsettings, measuring a performance of the configurable electrode assemblywith the test settings applied to the electrode sub-elements, andaltering the test settings in response to the measured performance toconverge on optimized selected settings implementing the requesteddevice characteristic. In an embodiment, the configuration manager isconfigured to select the electrode pattern in response to a real timefeedback loop monitoring a performance by the configurable electrodeassembly with respect to the requested device characteristic,implementing a change in the settings, and then evaluating theperformance by the configurable electrode assembly with the changedsettings with respect to the requested device characteristic. Forexample, the real time feedback loop includes a real time feedback loopperforming trial runs during a call or transmit/receive change over. Inan embodiment, the configuration manager is further configured to outputa signal specifying the selected settings.

In an embodiment, the device 1200 includes the library 1256 of at leasttwo selectable device characteristics. Each selectable filtercharacteristic of the at least two selectable device characteristicsincludes settings of the addressable switches of the configurableelectrode assembly 1208 implementing a device characteristic. Forexample, a device characteristic may include at least one of a requestedcenter frequency f₀, bandwidth, or transfer function. In an embodiment,the library may be provided by the manufacturer of the surface acousticwave device 1200, a third party, or from trial runs of the actualsurface acoustic wave device.

In an embodiment of the device 1200 both the input electrode assemblyand the output electrode assembly are fabricated on the piezoelectricsubstrate 1205. In an embodiment of the device, the plurality M ofelongated electrode sub-elements 1210 of the configurable electrodeassembly 1208 are fabricated on the piezoelectric substrate 1205, andthe first signal bus and the second signal bus are fabricated on anothersubstrate which is positioned proximate to the plurality elongated inputelectrode sub-elements.

In an embodiment, the device 1200 includes a receiver 1258 configured toreceive a request for a device characteristic. In an embodiment, therequest for the device characteristic includes requested fingerpositions, length, spacing, or width. In an embodiment, the request forthe device characteristic includes requested settings of the first andsecond matrices of addressable switches of the configurable electrodeassembly. In an embodiment, the request includes a request for a storedelectrode pattern.

FIG. 15 illustrates an example operational flow 1300 implemented in aconfigurable electrode assembly of a surface acoustic wave device. Theconfigurable electrode assembly including a stack assemblage of Ninstances of an electrode assembly sub-unit. Each electrode assemblysub-unit including a plurality M of elongated electrode sub-elementselectromechanically coupled with a piezoelectric substrate. In anembodiment, each elongated electrode sub-element has a width of lessthan λ/8. In an embodiment, the configurable electrode assembly mayinclude the configurable electrode assembly 1208 described inconjunction with FIG. 12.

After a start operation, the operational flow 1300 includes aconfiguration operation 1320. The configuration operation includesselecting an electrode pattern producing a requested devicecharacteristic in the configurable electrode assembly. In an embodiment,the configurable electrode assembly is an input electrode assembly or anoutput electrode assembly. In an embodiment, the configuration operationmay be implemented using the configuration manager 1254 described inconjunction with FIG. 12. In an embodiment, the configuration operationmay be further implemented in part or in whole using the processing unit21 and one or more components of the thin computing device 20 describedin conjunction with FIG. 1, or the processor 120 and one or morecomponents of the general purpose computing device 100 described inconjunction with FIG. 2. A first choosing operation 1330 includes inresponse to the selected electrode pattern, selecting a first subset ofat least two adjacent electrode sub-elements of the plurality ofelectrode sub-elements of a first subset of consecutive instances of theN instances of the electrode assembly sub-units. In an embodiment, thefirst choosing operation may be implemented using the configurationmanager 1254 described in conjunction with FIG. 12. In an embodiment,the first choosing operation may be further implemented in part or inwhole using the processing unit 21 and one or more components of thethin computing device 20 described in conjunction with FIG. 1, or theprocessor 120 and one or more components of the general purposecomputing device 100 described in conjunction with FIG. 2. A firsteffecting operation 1340 includes electrically coupling first signalbuses of the first subset of consecutive instances of the N instances ofthe electrode assembly sub-units with the first selected subset of atleast two adjacent electrode sub-elements using addressable switches. Inan embodiment, each addressable switch of the first matrix ofaddressable switches is configured to electrically couple a respectiveelectrode sub-element of the plurality M of electrode sub-elements witha first signal bus. The first effecting operation may be implementedusing the switch controller 1252 described in conjunction with FIG. 12.A second choosing operation 1350 includes in response to the selectedelectrode pattern, selecting a second disjoint subset of at least twoadjacent electrode sub-elements of the plurality M of electrodesub-elements of a second subset of consecutive instances of the Ninstances of the M electrode assembly sub-units, the first and seconddisjoint sets selected to implement the selected optimized electrodepattern. The second choosing operation may be implemented using theconfiguration manager 1254 described in conjunction with FIG. 12. In anembodiment, the second choosing operation may be further implemented inpart or in whole using the processing unit 21 and one or more componentsof the thin computing device 20 described in conjunction with FIG. 1, orthe processor 120 and one or more components of the general purposecomputing device 100 described in conjunction with FIG. 2. A secondeffecting operation 1360 includes electrically coupling second signalbuses of the second subset of consecutive instances of the N instancesof the electrode assembly sub-units with the second selected subset ofat least two adjacent electrode sub-elements using addressable switches.In an embodiment, each addressable switch of the second matrix ofaddressable switches is configured to electrically couple a respectiveelectrode sub-element of the plurality of electrode sub-elements with asecond signal bus. The second effecting operation may be implementedusing the switch controller 952 described in conjunction with FIG. 11.The operational flow includes an end operation.

In an embodiment, the operational flow 1300 includes a receivingoperation 1310 for receiving the request for the surface acoustic wavedevice characteristic. In an embodiment, the device characteristicincludes at least one of a requested center frequency f₀, bandwidth, ortransfer function.

In an embodiment of the operational flow 1300, if the input electrodeassembly includes the configurable electrode assembly, the methodincludes applying an input signal across the first signal buses of thefirst subset of consecutive instances of the N instances of theplurality of electrode assembly sub-units and the second signal buses ofthe second subset of consecutive instances of the N instances of theplurality of electrode assembly sub-units. In an embodiment, theoperational flow includes initiating surface waves on the piezoelectricsubstrate having amplitude or phase characteristics that are a functionof (i) the first subset of at least two adjacent electrode sub-elementsof the plurality of electrode sub-elements of a first subset ofconsecutive instances of the N instances of the electrode assemblysub-units and (ii) the second subset of at least two adjacent electrodesub-elements of the plurality of electrode sub-elements of a secondsubset of at least two adjacent electrode sub-elements of the pluralityof electrode sub-elements of a second subset of consecutive instances ofthe N instances of the electrode assembly sub-units.

In an embodiment of the operational flow 1300, if the output electrodeassembly includes the configurable electrode assembly, the methodincludes receiving a surface acoustic wave initiated by the inputelectrode assembly and generating an electrical signal in responsethereto across the first signal buses of the first subset of consecutiveinstances of the N instances of the plurality of electrode assemblysub-units and the second signal buses of the second subset ofconsecutive instances of the N instances of the plurality of electrodeassembly sub-units. In an embodiment, the generated electrical signalhas amplitude or phase characteristics that are a function of (i) thefirst subset of at least two adjacent electrode sub-elements of theplurality of electrode sub-elements of a first subset of consecutiveinstances of the N instances of the electrode assembly sub-units and(ii) the second subset of at least two adjacent electrode sub-elementsof the plurality of electrode sub-elements of a second subset of atleast two adjacent electrode sub-elements of the plurality of electrodesub-elements of a second subset of consecutive instances of the Ninstances of the electrode assembly sub-units.

FIG. 16 illustrates an example surface acoustic wave device 1400. Thesurface acoustic wave device includes a piezoelectric substrate 1405.The surface acoustic wave device includes a configurable input electrodeassembly 1408. In an embodiment, once programmed or configured, theconfigurable input electrode assembly electromechanically coupled withthe piezoelectric substrate may be described as an input interdigitaltransducer. In an embodiment, the configurable input electrode assemblyincluding a stack assemblage 1440 of N_(i) instances of input electrodeassembly sub-units. The N_(i) instances of electrode assembly sub-unitsare illustrated as electrode assembly sub-units 1440.1-1440.N_(i). Eachinput electrode assembly sub-unit includes a plurality M_(i) ofelongated input electrode sub-elements electromechanically coupled withthe piezoelectric substrate. The plurality M_(i) of spaced-apartelongated electrode sub-elements of an electrode assembly sub-unit areillustrated in FIG. 16 as electrode sub-elements 1410.1-1410.M_(i). Forexample, an embodiment of an electrode assembly sub-unit is described inconjunction with FIG. 8 by the configurable electrode assembly 708 whereM_(i)=16. See also FIG. 11. Each input electrode assembly sub-unitincludes a first input signal bus, crossing each of the input electrodesub-elements of the plurality of input electrode sub-elements, andelectrically isolated therefrom. For example, the first input signal busof each of the of N_(i) instances of input electrode assembly sub-unitsis at least similar to the first signal bus 1132.1 described inconjunction with FIG. 13. Each input electrode assembly sub-unitincludes a second input signal bus crossing each of the input electrodesub-elements of the plurality of input electrode sub-elements, andelectrically isolated therefrom. For example, the second input signalbus of each of the of N_(i) instances of input electrode assemblysub-units is at least similar to the second signal bus 1136.1 describedin conjunction with FIG. 13. Each input electrode assembly sub-unitincludes a first input-matrix of individually addressable switches. Eachaddressable switch of the first input-matrix is configured toelectrically couple a respective input electrode sub-element of theplurality of input electrode sub-elements with the first input signalbus. Each input electrode assembly sub-unit includes a secondinput-matrix of individually addressable switches. Each addressableswitch of the second input-matrix is configured to electrically couple arespective input electrode sub-element of the plurality of inputelectrode sub-elements with the second input signal bus. For example, anembodiment of the first matrix of individually addressable switches andthe second matrix of individually addressable switches of an electrodeassembly sub-unit are described in conjunction with FIG. 8 as the firstmatrix of individually addressable switches 722 and the second matrix ofindividually addressable switches 726 of the configurable electrodeassembly 708. For example, an embodiment of the first matrix ofindividually addressable switches and the second matrix of individuallyaddressable switches of an electrode assembly sub-unit are described inconjunction with FIG. 3 as the first matrix of individually addressableswitches 222 and the second matrix of individually addressable switches226 of the configurable electrode assembly 208.

The surface acoustic wave device 1400 includes a configurable outputelectrode assembly 1409. In an embodiment, once programmed orconfigured, the configurable output electrode assemblyelectromechanically coupled with the piezoelectric substrate may bedescribed as an output interdigital transducer. In an embodiment, theconfigurable output electrode assembly includes a stack assemblage 1490of N₀ instances of output electrode assembly sub-units. The N₀ instancesof electrode assembly sub-units are illustrated as electrode assemblysub-units 1490.1-1490.N₀. Each output electrode assembly sub-unitincludes a plurality M₀ of elongated output electrode sub-elementselectromechanically coupled with the piezoelectric substrate. Theplurality M₀ of spaced-apart elongated electrode sub-elements of anelectrode assembly sub-unit are illustrated in FIG. 16 as electrodesub-elements 1480.1-1480.M₀. For example, an embodiment of an electrodeassembly sub-unit is described in conjunction with FIG. 8 by theconfigurable electrode assembly 708 where M₀=16. See also FIG. 11. Eachoutput electrode assembly sub-unit includes a first output signal bus,crossing each of the output electrode sub-elements of the plurality ofoutput electrode sub-elements, and electrically isolated therefrom. Forexample, the first output signal bus of each of the N₀ instances ofoutput electrode assembly sub-units is at least similar to the firstsignal bus 1132.1 described in conjunction with FIG. 13. Each outputelectrode assembly sub-unit includes a second output signal bus crossingeach of the output electrode sub-elements of the plurality of outputelectrode sub-elements, and electrically isolated therefrom. Forexample, the second output signal bus of each of the N₀ instances ofoutput electrode assembly sub-units is at least similar to the secondsignal bus 1136.1 described in conjunction with FIG. 13. Each outputelectrode assembly sub-unit includes a first output-matrix ofindividually addressable switches. Each addressable switch of the firstoutput-matrix is configured to electrically couple a respective outputelectrode sub-element of the plurality of output electrode sub-elementswith the first output signal bus. Each output electrode assemblysub-unit includes a second output-matrix of individually addressableswitches. Each addressable switch of the second output-matrix isconfigured to electrically couple a respective output electrodesub-element of the plurality of output electrode sub-elements with thesecond output signal bus. For example, an embodiment of the first matrixof individually addressable switches and the second matrix ofindividually addressable switches of an electrode assembly sub-unit aredescribed in conjunction with FIG. 8 as the first matrix of individuallyaddressable switches 722 and the second matrix of individuallyaddressable switches 726 of the configurable electrode assembly 708. Forexample, an embodiment of the first matrix of individually addressableswitches and the second matrix of individually addressable switches ofan electrode assembly sub-unit are described in conjunction with FIG. 3as the first matrix of individually addressable switches 222 and thesecond matrix of individually addressable switches 226 of theconfigurable electrode assembly 208.

In an embodiment, the surface acoustic wave device 1400 device includesa surface wave propagating region 1407 of the piezoelectric substrate1405. In an embodiment, the surface wave propagating region is locatedin a propagation path between the input electrode assembly 1408 and theoutput electrode assembly 1409.

In an embodiment, the plurality M_(i) of input sub-elements 1410 eachhave a width of less than λ/8 (where the surface acoustic wavelength λon the piezoelectric substrate=acoustic wave velocity V_(SAW)/centerfrequency f₀ of the device). In an embodiment, the plurality of M_(i)input electrode sub-elements are each respectively transverselyspaced-apart a distance of less than λ/16. In an embodiment, the stackassemblage of the N_(i) instances of the input electrode assemblysub-unit includes each input electrode sub-element with a same M_(i)index number in a common alignment.

In an embodiment of the surface acoustic wave device 1400, the pluralityM₀ of output sub-elements each have a width of less than λ/8 (where thesurface acoustic wavelength λ on the piezoelectric substrate=acousticwave velocity V_(SAW)/center frequency f₀ of the device). In anembodiment, the plurality of M₀ output electrode sub-elements are eachrespectively transversely spaced-apart a distance of less than λ/16.

In an embodiment of the surface acoustic wave device 1400, stackassemblage of the N_(o) instances of the output electrode assemblysub-unit includes a centerline of an elongated length of each outputelectrode sub-element with a same M_(o) index number aligned on a commoncenterline.

In an embodiment, the surface acoustic wave device 1400 includes a firstinput signal distribution bus 1432 coupled to each first input signalbus of the N_(i) instances of the input electrode assembly sub-unit; anda second input signal distribution bus 1434 coupled to each second inputbus of the N_(i) instances of the input electrode assembly sub-unit. Inan embodiment, the surface acoustic wave device includes a first outputsignal distribution bus 1482 coupled to each first output signal bus ofthe N_(o) instances of the output electrode assembly sub-unit; and asecond output signal distribution bus 1484 coupled to each second outputbus of the N_(o) instances of the output electrode assembly sub-unit.

In an embodiment, the surface acoustic wave device 1400 includes aninput switching bus coupled to each addressable switch of the firstinput-matrix of addressable switches and of the second input-matrix ofaddressable switches. In an embodiment, the surface acoustic wave deviceincludes an output switching bus coupled to each addressable switch ofthe first output-matrix of addressable switches and of the secondoutput-matrix of addressable switches. An embodiment of a switching busis illustrated by the first switching bus 224 or the second switchingbus 228 described in conjunction with FIG. 3.

In an embodiment of the surface acoustic wave device 1400, if a firstsubset of at least two adjacent input electrode sub-elements of theplurality M_(i) of input electrode sub-elements of a first subset ofconsecutive instances of the N_(i) instances of the plurality inputelectrode assembly sub-units are electrically coupled with theirrespective first input signal buses by their respective first inputaddressable switches, and if a second subset of at least two adjacentinput electrode sub-elements of the plurality M_(i) of input electrodesub-elements of a second subset of consecutive instances of the N_(i)instances of the plurality input electrode assembly sub-units areelectrically coupled with their respective second input signal buses bytheir respective second addressable switches, the second subset ofconsecutive instances of at least two adjacent input electrodesub-elements not including any members of the first subset ofconsecutive instances of at least two adjacent input electrodesub-elements, the input electrode assembly 1408 is configured toinitiate surface waves on the piezoelectric substrate 1405 in responseto a signal applied across the first input signal distribution bus 1432and the second input signal distribution bus 1434. In an embodiment, thesurface waves on the piezoelectric substrate have amplitude or phasecharacteristics that are a function of the first subset of at least twoadjacent input electrode sub-elements and the second subset of at leasttwo adjacent input electrode sub-elements. In an embodiment, the firstsubset of at least two adjacent input electrode sub-elements of theinput electrode sub-elements includes at least five adjacent inputelectrode sub-elements.

In an embodiment of the surface acoustic wave device 1400, if a firstsubset of at least two adjacent output electrode sub-elements of theplurality M₀ of output electrode sub-elements of a first subset ofconsecutive instances of the N₀ instances of the plurality outputelectrode assembly sub-units are electrically coupled with theirrespective first output signal buses by their respective first outputaddressable switches, and if a second subset of at least two adjacentoutput electrode sub-elements of the plurality M₀ of output electrodesub-elements of a second subset of consecutive instances of the N₀instances of the plurality of output electrode assembly sub-units areelectrically coupled with their respective second output signal buses bytheir respective second output addressable switches, the second subsetof consecutive instances of at least two adjacent output electrodesub-elements not including any members of the first subset ofconsecutive instances of at least two adjacent output electrodesub-elements, the output electrode assembly 1409 is configured toreceive a surface wave and generate an electrical signal in responsethereto across the first output signal distribution bus 1482 and thesecond output signal distribution bus 1484. In an embodiment, thegenerated electrical signal has amplitude or phase characteristics thatare a function of the first subset of consecutive instances of theinstances of the plurality N₀ of output electrode assembly sub-units andthe second subset of consecutive instances of the instances of theplurality N₀ of output electrode assembly sub-units.

FIG. 17 illustrates a surface acoustic wave device 1500. The surfacewave device includes a piezoelectric substrate 1505 and a configurableelectrode assembly 1508. The configurable electrode assembly includes anarray including N rows of M elongated electrode sub-elements. The Melongated electrode sub-elements are illustrated as elongated electrodesub-elements 1510.0-1510.M. The elongated electrode sub-elementselectrically isolated from each other, and electromechanically coupledwith the piezoelectric substrate. The M elongated electrode sub-elementsof the N rows are arranged end-to-end in columns. The N rows areillustrated as rows 1540.1-1540.N. While the surface acoustic wavedevice is illustrated with N=3, in various embodiments N is greater thanthree. For example, in an embodiment, N=5. In another embodiment, N=10.In another embodiment, N=50. The configurable electrode assemblyincludes a first signal bus 1532 proximate to the first row 1540.1 ofthe N rows of M elongated electrode sub-elements and electricallyisolated therefrom. The configurable electrode assembly includes a firstmatrix of individually row addressable switches 1522. Each addressablerow switch of the first matrix is configured to electrically couple thefirst signal bus with a respective electrode sub-element of the firstrow of electrode sub-elements. The configurable electrode assemblyincludes a second signal bus 1536 proximate to the N^(th) row of the Nrows of the M elongated electrode sub-elements and electrically isolatedtherefrom. The configurable electrode assembly includes a second matrixof individually addressable row switches 1528. Each addressable rowswitch of the second matrix is configured to electrically couple thesecond signal bus with a respective electrode sub-element of the N^(th)row of electrode sub-elements. The configurable electrode assemblyincludes a plurality of individually addressable column switches. Theindividually addressable column switches are illustrated by a first rowof at least two individually addressable column switches 1524A and asecond row of at least two individually addressable column switches1524B. Each individually addressable column switch is respectivelyconfigured to electrically couple an elongated electrode of a column ofthe M columns with an end-to-end adjacent elongated electrode of thesame column of the M columns.

In an embodiment, the surface acoustic wave device 1500 includes aRayleigh surface acoustic wave device. In an embodiment, the surfaceacoustic wave device includes a pseudo surface acoustic wave device. Inan embodiment, the first signal bus is carried by the piezoelectricsubstrate. In an embodiment, the first signal bus is deposited on thepiezoelectric substrate. In an embodiment, the second signal bus iscarried by the piezoelectric substrate. In an embodiment, the secondsignal bus is deposited on the piezoelectric substrate.

In an embodiment of the surface acoustic wave device 1500, eachelongated electrode sub-element of the plurality M of elongatedelectrode sub-elements has a width of not more than λ/4. (where thesurface acoustic wavelength λ on the piezoelectric substrate=acousticwave velocity V_(SAW)/center frequency f₀ of the device). In anembodiment, each elongated electrode sub-element has a width of not morethan λ/8.

In an embodiment, the surface acoustic wave device 1500 includes aswitch controller 1552 configured to operate an addressable row switchof the first matrix of addressable row switches 1522, an addressable rowswitch of the second matrix of addressable row switches 1528, or anindividually addressable column switch of the at least two individuallyaddressable column switches, illustrated by a first row of at least twoindividually addressable column switches 1524A and a second row of atleast two individually addressable column switches 1524B.

In an embodiment, the surface acoustic wave device 1500 includes aconfiguration manager 1554 configured to (i) receive a request for adevice characteristic, and (ii) select settings of the first matrix ofaddressable row switches, the second matrix of addressable row switchesand the plurality of individually addressable column switchesimplementing the requested device characteristic. In an embodiment, therequest for device characteristic includes a request for an amplitude orphase response by the surface acoustic wave device. In an embodiment,the request for device characteristic includes a request for anarbitrary device characteristic. In an embodiment, the surface acousticwave device 1500 includes a receiver 1558 configured to receive arequested device characteristic.

FIG. 18 illustrates an example surface acoustic wave device 1600. Thesurface acoustic wave device includes a piezoelectric substrate 1605.The surface acoustic wave device includes an input electrode assemblyand an output electrode assembly. In an embodiment, once programmed orconfigured, the input electrode assembly electromechanically coupledwith the piezoelectric substrate may be described as an inputinterdigital transducer. In an embodiment, once programmed orconfigured, the output electrode assembly electromechanically coupledwith the piezoelectric substrate may be described as an outputinterdigital transducer. The surface acoustic wave device includes asurface wave propagating region 1607 of the piezoelectric substrate. Inan embodiment, the surface wave propagating region is located in apropagation path between the input electrode assembly and the outputelectrode assembly.

The surface acoustic wave device 1600 includes a configurable electrodeassembly 1608 and another electrode assembly, illustrated by a fixedelectrode 1609. In the surface acoustic wave device, the input electrodeassembly or the output electrode assembly includes the configurableelectrode assembly. In an embodiment, the another electrode assembly mayinclude another configurable electrode assembly or a fixed electrodeassembly. The fixed electrode assembly includes a first fixed electrode1682, and a second fixed electrode 1686.

The configurable electrode assembly 1608 includes an array including Nrows of M elongated electrode sub-elements. The M elongated electrodesub-elements are illustrated as elongated electrode sub-elements1610.0-1610.M. The elongated electrode sub-elements electricallyisolated from each other, and electromechanically coupled with thepiezoelectric substrate. The M elongated electrode sub-elements of the Nrows are arranged end-to-end in columns. The N rows are illustrated asrows 1640.1-1640.N. While the surface acoustic wave device isillustrated with N=3, in various embodiments N is greater than three.For example, in an embodiment, N=5. In another embodiment, N=10. Inanother embodiment, N=50. The configurable electrode assembly includes afirst signal bus 1632 proximate to the first row 1640.1 of the N rows ofM elongated electrode sub-elements and electrically isolated therefrom.The configurable electrode assembly includes a first matrix ofindividually row addressable switches 1622. Each addressable row switchof the first matrix is configured to electrically couple the firstsignal bus with a respective electrode sub-element of the first row ofelectrode sub-elements. The configurable electrode assembly includes asecond signal bus 1636 proximate to the N^(th) row of the N rows of theM elongated electrode sub-elements and electrically isolated therefrom.The configurable electrode assembly includes a second matrix ofindividually addressable row switches 1628. Each addressable row switchof the second matrix is configured to electrically couple the secondsignal bus with a respective electrode sub-element of the N^(th) row ofelectrode sub-elements. The configurable electrode assembly includes aplurality of individually addressable column switches. The individuallyaddressable column switches are illustrated by a first row of at leasttwo individually addressable column switches 1624A and a second row ofat least two individually addressable column switches 1624B. Eachindividually addressable column switch is respectively configured toelectrically couple an elongated electrode of a column of the M columnswith an end-to-end adjacent elongated electrode of the same column ofthe M columns.

In an embodiment of surface acoustic wave device 1600, if the inputelectrode assembly includes the configurable electrode assembly 1608, ifa first selected electrode sub-element in the first row 1640.1 of the Nrows of the plurality M of electrode sub-elements (a first baseelectrode sub-element) is electrically coupled to the first signal bus1632, if a first selected subset of electrode sub-elements in anend-to-end alignment with the first base electrode sub-element andlocated in adjacent consecutive rows of the N rows of the electrodeassembly sub-units are electrically coupled with the first baseelectrode sub-element by their respective individually addressablecolumn switches, if a second selected electrode sub-element in theN^(th) row 1640.N of the N rows of the plurality M of electrodesub-elements (a second base electrode sub-element) is electricallycoupled to the second signal bus 1636, if a second selected subset ofelectrode sub-elements in an end-to-end alignment with the second baseelectrode sub-element and located in adjacent consecutive rows of the Nrows of the electrode assembly sub-units are electrically coupled withthe second base electrode sub-element by their respective individuallyaddressable column switches, the configurable electrode assembly isconfigured in response to a signal applied across the first signal busand the second signal bus to initiate surface waves on the piezoelectricsubstrate having amplitude or phase characteristics that are a functionof (i) the first base electrode sub-element and the first selectedsubset of adjacent consecutive rows and (ii) the second base electrodesub-element and the second selected subset of adjacent consecutive rows.In an embodiment, the second base electrode sub-element is separatedfrom the first base electrode sub-element by a selected transversedistance. In an embodiment, the selected transverse distance is at leastλ/4. In an embodiment, the selected transverse distance is less thanλ/4. In an embodiment, the first selection of at least two adjacentinput electrode sub-elements of the M input electrode sub-elementsincludes at least five end-to-end adjacent input electrode sub-elements.

In an embodiment in use, for example, if the electrode sub-element1610.2 of the row 1640.1 is selected as the first base electrodesub-element and coupled to the first signal bus 1632, if the electrodesub-element 1610.2 of the row 1640.2 and the electrode sub-element1610.2 of the row 1640.N are selected as a first subset of electrodesub-elements in an end-to-end alignment with the first base electrodesub-element and electrically coupled with their respective individuallyaddressable column switches of the first row of at least twoindividually addressable column switches 1524A and a second row of atleast two individually addressable column switches 1524B, if theelectrode sub-element 1610.4 of the row 1640.N is selected as the secondbase electrode sub-element and coupled to the second signal bus 1636, ifthe electrode sub-element 1610.4 of the row 1640.2 and the electrodesub-element 1610.2 of the row 1640.1 are selected as a second subset ofelectrode sub-elements in an end-to-end alignment with the second baseelectrode sub-element and electrically coupled with their respectiveindividually addressable column switches of the first row of at leasttwo individually addressable column switches 1524A and a second row ofat least two individually addressable column switches 1524B, the inputconfigurable electrode assembly is configured in response to a signalapplied across the first signal bus and the second signal bus toinitiate surface waves on the piezoelectric substrate having amplitudeor phase characteristics that are a function of (i) the first baseelectrode sub-element and the first selected subset of adjacentconsecutive rows and (ii) the second base electrode sub-element and thesecond selected subset of adjacent consecutive rows.

In an embodiment of surface acoustic wave device 1600, if the outputelectrode assembly includes the configurable electrode assembly 1608, ifa first selected electrode sub-element in the first row 1640.1 of the Nrows of the plurality of M electrode sub-elements (a first baseelectrode sub-element) is electrically coupled to the first signal bus1632, if a first selected subset of electrode sub-elements in anend-to-end alignment with the first base electrode sub-element andlocated in adjacent consecutive rows of the N rows of the electrodeassembly sub-units are electrically coupled with the first baseelectrode sub-element by their respective individually addressablecolumn switches, if a second selected electrode sub-element in theN^(th) row 1640.N of the N rows of the plurality of M electrodesub-elements (a second base electrode sub-element) is electricallycoupled to the second signal bus 1636, if a second selected subset ofelectrode sub-elements in an end-to-end alignment with the second baseelectrode sub-element and located in adjacent consecutive rows of the Nrows of the electrode assembly sub-units are electrically coupled withthe second base electrode sub-element by their respective individuallyaddressable column switches, the output configurable electrode assemblyis configured to receive a surface wave and generate an electricalsignal in response thereto across the first signal bus and the secondsignal bus in response to the surface acoustic wave on the piezoelectricsubstrate. In an embodiment, the generated electrical signal hasamplitude or phase characteristics that are a function of (i) the firstbase electrode sub-element and the first selected subset of adjacentconsecutive rows and (ii) the second base electrode sub-element and thesecond selected subset of adjacent consecutive rows. In an embodiment,the first selected subset of adjacent consecutive rows of electrodesub-elements of the M input electrode sub-elements includes at leastfive adjacent electrode sub-elements.

In an embodiment of surface acoustic wave device 1600, the inputelectrode assembly includes a first configurable electrode assembly 1608and the output electrode assembly includes a second configurableelectrode assembly. In an embodiment of surface acoustic wave device,the input electrode assembly includes a first instance of theconfigurable electrode assembly and the output electrode assemblyincludes a second instance of the configurable electrode assembly.

In an embodiment, the surface acoustic wave device 1600 includes aswitch controller 1652 configured to operate an addressable row switchof the first matrix of addressable row switches, an addressable rowswitch of the second matrix of addressable row switches, or anindividually addressable column switch of the at least two individuallyaddressable column switches. In an embodiment, the switch controller isconfigured to operate the switches in response to signal specifyingswitch settings selected to implement a device characteristic. In anembodiment, the configurable electrode assembly 1608 includes the switchcontroller.

In an embodiment, the configurable electrode assembly 1608 includes aconfiguration manager 1654 configured to (i) receive a request for adevice characteristic, and (ii) select settings of the first matrix ofaddressable row switches, of the second matrix of addressable rowswitches, or the at least two individually addressable column switchesimplementing the requested device characteristic. In an embodiment, thedevice characteristic includes a request for an amplitude or phaseresponse by the surface acoustic wave device. In an embodiment, thedevice characteristic includes an arbitrary device characteristic. In anembodiment, the (ii) select settings includes (a) select an electrodepattern predicted to produce the device characteristic and (b) selectsettings of the first matrix of individually addressable row switches,the second matrix of individually addressable row switches, or the atleast two individually addressable column switches implementing theselected electrode pattern in the electrode sub-elements.

In an embodiment, the surface acoustic wave device 1600 includes aconfiguration manager 1654 configured to (i) receive a request for andevice characteristic, and (ii) select settings of the first matrix ofindividually addressable row switches, the second matrix of individuallyaddressable row switches, or the at least two individually addressablecolumn switches implementing the selected electrode pattern in theelectrode sub-elements implementing the requested device characteristic.In an embodiment, the configurable electrode assembly 1608 includes theconfiguration manager.

In an embodiment, the surface acoustic wave device 1600 includes alibrary 1656 of at least two selectable device characteristics. Eachselectable filter characteristic of the at least two selectable devicecharacteristics includes settings of the addressable switches of theconfigurable electrode assembly implementing a device characteristicthat includes a requested center frequency f₀, bandwidth, impulseresponse, delay, or transfer function. In an embodiment, the surfaceacoustic wave device 1600 includes a receiver 1658 configured to receivea requested device characteristic.

FIG. 19 illustrates an exemplary operational flow 1700 implemented in aconfigurable electrode assembly of a surface acoustic wave device. Theconfigurable electrode assembly including an array including N rows of Melongated electrode sub-elements, wherein the elongated electrodesub-elements electrically isolated from each other, andelectromechanically coupled with the piezoelectric substrate, the Melongated electrode sub-elements of the N rows arranged end-to-end in Mcolumns.

After a start operation, the operational flow 1700 includes aconfiguration operation 1710. The configuration operation includesselecting an electrode pattern producing a requested devicecharacteristic in a configurable electrode assembly of a surface wavedevice. In an embodiment, the configurable electrode assembly is aninput electrode assembly or an output electrode assembly. In anembodiment, the configuration operation may be implemented using theconfiguration manager 1654 described in conjunction with FIG. 18. In anembodiment, the configuration operation may be further implemented inpart or in whole using the processing unit 21 and one or more componentsof the thin computing device 20 described in conjunction with FIG. 1, orthe processor 120 and one or more components of the general purposecomputing device 100 described in conjunction with FIG. 2. A firstchoosing operation 1720 includes, in response to the selected optimizedelectrode pattern, selecting a first electrode sub-element in the firstrow of the N rows of the plurality of M electrode sub-elements as afirst base electrode sub-element, and selecting a first subset ofelectrode sub-elements in an end-to-end alignment with the first baseelectrode sub-element and located in adjacent consecutive rows of the Nrows of the electrode assembly sub-units. In an embodiment, the firstchoosing operation may be implemented using the configuration manager1654 described in conjunction with FIG. 18. In an embodiment, the firstchoosing operation may be further implemented in part or in whole usingthe processing unit 21 and one or more components of the thin computingdevice 20 described in conjunction with FIG. 1, or the processor 120 andone or more components of the general purpose computing device 100described in conjunction with FIG. 2. A first base electrode effectingoperation 1730 includes electrically coupling a first signal bus withthe first base electrode sub-element using a first individuallyaddressable row switch of a first matrix of individually row addressableswitches. Each addressable row switch of the first matrix is configuredto electrically couple the first signal bus with a respective electrodesub-element of the first row of electrode sub-elements. In anembodiment, the first base electrode effecting operation may beimplemented using a first individually addressable row switch of a firstmatrix of individually row addressable switches 1622 described inconjunction with FIG. 18. A first finger forming operation 1740 includeselectrically coupling the first subset of electrode sub-elements in theadjacent consecutive rows with the first base electrode sub-element bytheir respective individually addressable column switches. In anembodiment, the first finger forming operation may be implemented usingthe individually addressable column switches illustrated by the firstrow of at least two individually addressable column switches 1524A orthe second row of at least two individually addressable column switches1524B described in conjunction with FIG. 18. A second choosing operation1750 includes, in response to the selected optimized electrode pattern,selecting a second electrode sub-element in the N^(th) row of the N rowsof the plurality of M electrode sub-elements as a second base electrodesub-element, and selecting a second subset of electrode sub-elements inan end-to-end alignment with the second base electrode sub-element andlocated in adjacent consecutive rows of the N rows of the electrodeassembly sub-units. In an embodiment, the second choosing operation maybe implemented using the configuration manager 1654 described inconjunction with FIG. 18. In an embodiment, the second choosingoperation may be further implemented in part or in whole using theprocessing unit 21 and one or more components of the thin computingdevice 20 described in conjunction with FIG. 1, or the processor 120 andone or more components of the general purpose computing device 100described in conjunction with FIG. 2. A second base electrode effectingoperation 1760 includes electrically coupling the second signal bus withthe second base electrode sub-element using a second individuallyaddressable row switch of a second matrix of individually rowaddressable switches. In an embodiment, each addressable row switch ofthe second matrix is configured to electrically couple the second signalbus with a respective electrode sub-element of the N^(th) row ofelectrode sub-elements. In an embodiment, the second base electrodeeffecting operation may be implemented using a second individuallyaddressable row switch of a second matrix of individually rowaddressable switches 1628 described in conjunction with FIG. 18. Asecond finger forming operation 1770 includes electrically coupling thesecond subset of electrode sub-elements in the adjacent consecutive rowswith the second base electrode sub-element by their respectiveindividually addressable column switches. In an embodiment, the secondfinger forming operation may be implemented using the individuallyaddressable column switches illustrated by the first row of at least twoindividually addressable column switches 1524A or the second row of atleast two individually addressable column switches 1524B described inconjunction with FIG. 18. The operational flow includes an endoperation. In an embodiment, the operational flow 1700 includesreceiving the request for the device characteristic.

FIG. 20 illustrates an apparatus 1800. The apparatus includes a radiofrequency interface 1840 configured to receive or transmit radiofrequency signals on a plurality of channels. The apparatus includes aradio frequency signal processing pathway 1810. The pathway includes atleast one configurable surface acoustic wave device 1808 configured tofilter or delay the radio frequency signals on at least two channels ofthe plurality of channels. The at least one configurable surfaceacoustic wave device is illustrated by configurable surface acousticwave device 1808A, configurable surface acoustic wave device 1808B, andconfigurable surface acoustic wave device 1808C.

In an embodiment, the configurable surface acoustic wave device 1808 maybe illustrated by reference to the configurable surface acoustic wavedevice 400 described in conjunction with FIG. 5. The configurablesurface acoustic wave device includes the piezoelectric substrate 405,an input electrode assembly, and an output electrode assembly. Theconfigurable surface acoustic wave device includes the surface wavepropagating region 407 of the piezoelectric substrate.

Continuing with the illustration of the configurable surface acousticwave device 1808 by reference to the configurable surface acoustic wavedevice 400 described in conjunction with FIG. 5, the configurablesurface acoustic wave device 1808 includes the configurable electrodeassembly 408 and another electrode assembly, illustrated by the fixedelectrode assembly 409. In the surface acoustic wave device, the inputelectrode assembly or the output electrode assembly includes theconfigurable electrode assembly. In an embodiment, the another electrodeassembly may include another configurable electrode assembly or a fixedelectrode assembly. The fixed electrode assembly is illustrated by thefirst fixed electrode 482, illustrated in an embodiment with a firstelectrical contact 484, and a second fixed electrode 486, illustrated inan embodiment with a second electrical contact 488. The configurableelectrode assembly 408 includes a plurality of spaced-apart elongatedelectrode elements 410 electromechanically coupled with thepiezoelectric substrate 405. The plurality of spaced-apart elongatedelectrode elements 410 are illustrated by electrode elements410.1-410.7. The configurable electrode assembly includes a first signalbus 432 proximate to each of the plurality of electrode elements, andelectrically isolated therefrom. In an embodiment, an electrical contact434 is coupled to the first signal bus. The configurable electrodeassembly includes a first matrix of addressable switches 422. Eachaddressable switch of the first matrix of addressable switches isconfigured to electrically couple a respective electrode element of theplurality of electrode elements with the first signal bus. Theconfigurable electrode assembly includes a second signal bus 436proximate to each of the plurality of electrode elements, andelectrically isolated therefrom. In an embodiment, a second electricalcontact 438 is coupled to the second signal bus. The configurableelectrode assembly includes a second matrix of addressable switches 426.Each addressable switch of the second matrix of addressable switches isconfigured to electrically couple a respective electrode element of theplurality of electrode elements with the second signal bus. Theapparatus includes an apparatus specific circuitry 1880. In anembodiment of the configurable surface acoustic wave device 1808, theinput electrode assembly 408 includes a first configurable electrodeassembly and the output electrode assembly 409 includes a secondconfigurable electrode assembly.

In an embodiment, the radio frequency interface 1840 is configured toreceive or transmit airborne radio frequency signals on a plurality ofchannels, for example using an antenna 1844. In an embodiment, the radiofrequency interface is configured to receive or transmit wire borneradio frequency signals on a plurality of channels, for example usingthe wire or cable input 1848. In an embodiment, the radio frequencyinterface includes a transmitter 1842. The apparatus of claim 375,wherein the radio frequency interface includes a receiver 1846.

In an embodiment, the radio frequency signal processing pathway 1810includes the first configurable surface acoustic wave device 1808Aconfigured to filter or delay the radio frequency signals on at least afirst two channels of the plurality of channels and the secondconfigurable surface acoustic wave device 1808B configured to filter ordelay the radio frequency signals on at least a second two channels ofthe plurality of channels. In an embodiment, there may be a commonchannel included in the first two channels of the plurality of channelsand the second two channels of the plurality of channels. In anembodiment, the radio frequency signal processing pathway includes thethird configurable surface acoustic wave device 1808C configured tofilter or delay the radio frequency signals on at least a third twochannels of the plurality of channels.

In an embodiment, the radio frequency signal processing pathway 1810including the configurable surface acoustic wave device 1808 areconfigured to tailor a frequency space response to a channel. Forexample, a tailored frequency response in a channel may be implementedbased upon which neighboring channels are occupied. In an embodiment,the radio frequency signal processing pathway including the configurablesurface acoustic wave device are configured to shift a receiving ortransmitting transducer along the device axis, which would change theoverall delay from input to output. For example, such a shift will beuseful in adjusting the delay to maintain time and phase matchingbetween multiple channels, or in maintaining a constant delay withtemperature variations, or for relatively large shifts, changing thedispersion (delay vs. frequency) characteristics of a surface acousticwave device.

In an embodiment, the apparatus specific circuit 1880 includes a mobilecommunications specific circuit. In an embodiment, the apparatusspecific circuit includes a smart phone specific circuit. In anembodiment, the apparatus specific circuit includes a cellularcommunication specific circuit. In an embodiment, the apparatus specificcircuit includes a global positioning system specific circuit. In anembodiment, the apparatus specific circuit includes a radar specificcircuit. In an embodiment, the apparatus specific circuit includes acable or wireless modem specific circuit. In an embodiment, theapparatus specific circuit includes an optical fiber communicationsystem specific circuit. In an embodiment, the apparatus specificcircuit includes a wireless hub or base station specific circuit. In anembodiment, the apparatus specific circuit includes a cellularcommunications system specific circuit.

In an embodiment, the radio frequency signal processing pathway 1810includes a switch controller 1852 coupled to an addressable switch ofthe first matrix of addressable switches and an addressable switch ofthe second matrix of addressable switches of the configurable electrodeassembly 1808. In an embodiment, the radio frequency signal processingpathway includes a configuration manager 1854 configured to (i) receivea request for a filter characteristic, and (ii) select settings of thefirst and second matrices of addressable switches of the configurableelectrode assembly implementing the requested filter characteristic. Inan embodiment, the radio frequency signal processing pathway includes anembedded signal processing pathway computer system 1858. In anembodiment, the radio frequency signal processing pathway includes alibrary 1856 of at least two selectable filter characteristics. Eachselectable filter characteristic of the at least two selectable filtercharacteristics includes settings of the addressable switches of theconfigurable electrode assembly implementing a filter characteristicthat includes at least one of a requested center frequency f₀,bandwidth, or transfer function.

In an embodiment, the apparatus specific circuit 1880 includes anembedded computer system 1882. For example, the embedded signalprocessing pathway computer system 1858 or the embedded computer system1882 may include the processing unit 21 and one or more components ofthe thin computing device 20 described in conjunction with FIG. 1. Forexample, the embedded signal processing pathway computer system 1858 orthe embedded computer system 1882 may include the processor 120 and oneor more components of the general purpose computing device 100 describedin conjunction with FIG. 2.

In an embodiment, the radio frequency signal processing pathway includesa receiver 1862 configured to receive a request for a filtercharacteristic. In an embodiment, the request for the filtercharacteristic includes a requested finger positions, length, spacing,or width. In an embodiment, the request for the filter characteristicincludes requested settings of the first and second matrices ofaddressable switches of the configurable electrode assembly.

FIG. 21 illustrates an apparatus 1900. The apparatus includes a radiofrequency interface 1940 configured to receive or transmit radiofrequency signals on a plurality of channels. The apparatus includes aradio frequency signal processing pathway 1910. In an embodiment, theradio frequency processing pathway is configured to process radiofrequency signals between about 30 MHz and 3 GHz. The pathway includesat least one configurable surface acoustic wave device 1908 configuredto filter or delay the radio frequency signals on at least two channelsof the plurality of channels. In an embodiment, the plurality ofchannels includes a plurality of preset channels. For example, aplurality of preset channels may include a plurality of preset channelsof a cellular communication network. For example, a plurality of presetchannels may include a plurality of preset channels of an optical fibersystem. The at least one configurable surface acoustic wave device isillustrated by configurable surface acoustic wave device 1908A,configurable surface acoustic wave device 1908B, and configurablesurface acoustic wave device 1908C.

In an embodiment, the configurable surface acoustic wave device 1908 maybe illustrated by reference to the configurable surface acoustic wavedevice 1200 described in conjunction with FIG. 14. The configurablesurface acoustic wave device includes the piezoelectric substrate 1205,an input electrode assembly, and an output electrode assembly. Theconfigurable surface acoustic wave device includes the surface wavepropagating region 1207 of the piezoelectric substrate located in apropagation path between the input electrode assembly and the outputelectrode assembly.

Continuing with the illustration of the configurable surface acousticwave device 1908 by reference to the configurable surface acoustic wavedevice 1200 described in conjunction with FIG. 14, the configurablesurface acoustic wave device 1908 includes the configurable electrodeassembly 1208 and another electrode assembly, illustrated by the fixedelectrode assembly 1209. In the surface acoustic wave device, the inputelectrode assembly or the output electrode assembly includes theconfigurable electrode assembly. In an embodiment, the another electrodeassembly may include another configurable electrode assembly or a fixedelectrode assembly. The fixed electrode assembly is illustrated by thefirst fixed electrode 1282, and the second fixed electrode 1286. Theconfigurable electrode assembly 1208 includes a stack assemblage 1240 ofN instances of electrode assembly sub-units. The N instances ofelectrode assembly sub-units are illustrated as electrode assemblysub-units 1240.1-1240.N. Each electrode assembly sub-unit including aplurality M of spaced-apart elongated electrode sub-elements 1210electromechanically coupled with the piezoelectric substrate. Theplurality M of spaced-apart elongated electrode sub-elements of anelectrode assembly sub-unit are illustrated in FIG. 14 as electrodesub-elements 1210.1-1210.M. For example, an embodiment of an electrodeassembly sub-unit is described in conjunction with FIG. 8 by theconfigurable electrode assembly 708 where M=16. See also FIG. 11. Eachelectrode assembly sub-unit of the configurable electrode assemblyincludes a first signal bus proximate to each of the electrodesub-elements of the plurality M of electrode sub-elements and iselectrically isolated therefrom. For example, the first signal bus ofthe electrode assembly sub-unit 1240.1 is described in conjunction withFIG. 13 by the first signal bus 1132.1. Each electrode assembly sub-unitof the configurable electrode assembly includes a second signal busproximate to each of the electrode sub-elements of the plurality M ofelectrode sub-elements and is electrically isolated therefrom. Forexample, the second signal bus of the electrode assembly sub-unit 1240.1is described in conjunction with FIG. 13 by the second signal bus1136.1. For example, an embodiment of the first signal bus and thesecond signal bus of an electrode assembly sub-unit is described inconjunction with FIG. 8 as the first signal bus 732 and the secondsignal bus 736 of the configurable electrode assembly 708. Eachelectrode assembly sub-unit of the configurable electrode assembly 1208includes a first matrix of individually addressable switches. Eachaddressable switch of the first matrix is configured to electricallycouple a respective electrode sub-element of the plurality M ofelectrode sub-elements with the first signal bus. Each electrodeassembly sub-unit of the configurable electrode assembly includes asecond matrix of individually addressable switches. Each addressableswitch of the second matrix is configured to electrically couple arespective electrode sub-element of the plurality M of electrodesub-elements with the second signal bus. For example, an embodiment ofthe first matrix of individually addressable switches and the secondmatrix of individually addressable switches of an electrode assemblysub-unit are described in conjunction with FIG. 8 as the first matrix ofindividually addressable switches 722 and the second matrix ofindividually addressable switches 726 of the configurable electrodeassembly 708. For example, an embodiment of the first matrix ofindividually addressable switches and the second matrix of individuallyaddressable switches of an electrode assembly sub-unit are described inconjunction with FIG. 3 as the first matrix of individually addressableswitches 222 and the second matrix of individually addressable switches226 of the configurable electrode assembly 208.

The apparatus 1900 includes an apparatus specific circuitry 1980. In anembodiment of the configurable surface acoustic wave device 1908A, theinput electrode assembly 908 includes a first configurable electrodeassembly and the output electrode assembly 909 includes a secondconfigurable electrode assembly.

In an embodiment, the radio frequency interface 1940 is configured toreceive or transmit airborne radio frequency signals 1944 on a pluralityof channels. In an embodiment, the radio frequency interface isconfigured to receive or transmit wire borne radio frequency signals1948 on a plurality of channels. In an embodiment, the radio frequencyinterface is configured to receive or transmit radio frequency modulatedoptical signals on a plurality of channels. In an embodiment, the radiofrequency interface includes a transmitter 1942. In an embodiment, theradio frequency interface includes a receiver 1946.

In an embodiment, the radio frequency signal processing pathway 1910includes the first configurable surface acoustic wave device 1908Aconfigured to filter or delay the radio frequency signals on at least afirst two channels of the plurality of channels and the secondconfigurable surface acoustic wave device 1908B configured to filter ordelay the radio frequency signals on at least a second two channels ofthe plurality of channels. In an embodiment, the radio frequency signalprocessing pathway includes the third configurable surface acoustic wavedevice 1908C configured to filter or delay the radio frequency signalson at least a third two channels of the plurality of channels.

In an embodiment, the apparatus specific circuit 1980 includes a mobilecommunications specific circuit. In an embodiment, the apparatusspecific circuit includes a smart phone specific circuit. In anembodiment, the apparatus specific circuit includes a cellularcommunication specific circuit. In an embodiment, the apparatus specificcircuit includes a global positioning system specific circuit. In anembodiment, the apparatus specific circuit includes a radar specificcircuit. In an embodiment, the apparatus specific circuit includes acable or wireless modem specific circuit. In an embodiment, theapparatus specific circuit includes an optical fiber communicationsystem specific circuit. In an embodiment, the apparatus specificcircuit includes a wireless hub or base station specific circuit. In anembodiment, the apparatus specific circuit includes a cellularcommunications system specific circuit.

In an embodiment, the radio frequency signal processing pathway 1910includes a switch controller 1952 configured to operate an individuallyaddressable switch of the first matrix of addressable switches and anindividually addressable switch of the second matrix of addressableswitches of each of the N instances of the electrode assembly sub-unit.In an embodiment, the radio frequency signal processing pathway includesa configuration manager 1954 configured to (i) receive a request for afilter characteristic, and (ii) select settings of the first andsecond-matrices of addressable switches of each of the N instances ofthe electrode assembly sub-units implementing the requested devicecharacteristics implementing the requested filter characteristics. In anembodiment, the radio frequency signal processing pathway includes anembedded signal processing pathway computer system 1958. In anembodiment, the radio frequency signal processing pathway includes areceiver 1962.

In an embodiment, the radio frequency signal processing pathway includesa library 1956 of at least two selectable filter characteristics. Eachselectable filter characteristic of the at least two selectable filtercharacteristics includes settings of the addressable switches of theconfigurable electrode assembly implementing a filter characteristicthat includes at least one of a requested center frequency f₀,bandwidth, impulse response, delay, or transfer function. In anembodiment, the radio frequency signal processing pathway includes anembedded signal processing pathway computer system. In an embodiment,the apparatus specific circuitry 1980 includes an embedded computersystem 1982.

FIG. 22 illustrates an apparatus 2000. The apparatus includes a radiofrequency interface 2040 configured to receive or transmit radiofrequency signals on a plurality of channels. The apparatus includes aradio frequency signal processing pathway 2010. The pathway includes aconfigurable surface acoustic wave device 2008 configured to filter ordelay the radio frequency signals on at least two channels of theplurality of channels. The at least one configurable surface acousticwave device is illustrated by configurable surface acoustic wave device2008A, configurable surface acoustic wave device 2008B, and configurablesurface acoustic wave device 2008C.

In an embodiment, the configurable surface acoustic wave device 2008Amay be illustrated by reference to the configurable surface acousticwave device 1600 described in conjunction with FIG. 18. The configurablesurface acoustic wave device includes the piezoelectric substrate 1605,an input electrode assembly, and an output electrode assembly. Theconfigurable surface acoustic wave device includes the surface wavepropagating region 1607 of the piezoelectric substrate located in apropagation path between the input electrode assembly and the outputelectrode assembly.

Continuing with the illustration of the configurable surface acousticwave device 1808 by reference to the configurable surface acoustic wavedevice 1600 described in conjunction with FIG. 18, the configurablesurface acoustic wave device 2008A includes the configurable electrodeassembly 1608 and another electrode assembly, illustrated by the fixedelectrode assembly 1609. In the surface acoustic wave device, the inputelectrode assembly or the output electrode assembly includes theconfigurable electrode assembly. In an embodiment, the another electrodeassembly may include another configurable electrode assembly or a fixedelectrode assembly. The fixed electrode assembly is illustrated by thefirst fixed electrode 1682, and the second fixed electrode 1686.

The configurable electrode assembly 1608 includes an array including Nrows of M elongated electrode sub-elements. The M elongated electrodesub-elements are illustrated as elongated electrode sub-elements1610.0-1610.M. The elongated electrode sub-elements electricallyisolated from each other, and electromechanically coupled with thepiezoelectric substrate. The M elongated electrode sub-elements of the Nrows are arranged end-to-end in columns. The N rows are illustrated asrows 1640.1-1640.N. While the surface acoustic wave device isillustrated with N=3, in various embodiments N is greater than three.For example, in an embodiment, N=5. In another embodiment, N=10. Inanother embodiment, N=50. The configurable electrode assembly includes afirst signal bus 1632 proximate to the first row 1640.1 of the N rows ofM elongated electrode sub-elements and electrically isolated therefrom.The configurable electrode assembly includes a first matrix ofindividually row addressable switches 1622. Each addressable row switchof the first matrix is configured to electrically couple the firstsignal bus with a respective electrode sub-element of the first row ofelectrode sub-elements. The configurable electrode assembly includes asecond signal bus 1636 proximate to the N^(th) row of the N rows of theM elongated electrode sub-elements and electrically isolated therefrom.The configurable electrode assembly includes a second matrix ofindividually addressable row switches 1628. Each addressable row switchof the second matrix is configured to electrically couple the secondsignal bus with a respective electrode sub-element of the N^(th) row ofelectrode sub-elements. The configurable electrode assembly includes aplurality of individually addressable column switches. The individuallyaddressable column switches are illustrated by a first row of at leasttwo individually addressable column switches 1624A and a second row ofat least two individually addressable column switches 1624B. Eachindividually addressable column switch is respectively configured toelectrically couple an elongated electrode of a column of the M columnswith an end-to-end adjacent elongated electrode of the same column ofthe M columns.

The apparatus 2000 includes an apparatus specific circuitry 2080. In anembodiment of the at least one configurable surface acoustic wave device2008, the input electrode assembly 1208 includes a first configurableelectrode assembly and the output electrode assembly 1209 includes asecond configurable electrode assembly.

In an embodiment, the radio frequency interface 2040 is configured toreceive or transmit airborne radio frequency signals 2044 on a pluralityof channels. In an embodiment, the radio frequency interface isconfigured to receive or transmit wire borne radio frequency signals2048 on a plurality of channels. In an embodiment, the radio frequencyinterface includes a transmitter 2042. In an embodiment, the radiofrequency interface includes a receiver 2046.

In an embodiment, the radio frequency signal processing pathway 2010includes the first configurable surface acoustic wave device 2008Aconfigured to filter or delay the radio frequency signals on at least afirst two channels of the plurality of channels and the secondconfigurable surface acoustic wave device 2008B configured to filter ordelay the radio frequency signals on at least a second two channels ofthe plurality of channels. In an embodiment, the radio frequency signalprocessing pathway includes the third configurable surface acoustic wavedevice 2008C configured to filter or delay the radio frequency signalson at least a third two channels of the plurality of channels. In anembodiment, the apparatus specific circuit 2080 includes a mobilecommunications specific circuit. In an embodiment, the apparatusspecific circuit includes a smart phone specific circuit. In anembodiment, the apparatus specific circuit includes a cellularcommunication specific circuit. In an embodiment, the apparatus specificcircuit includes a global positioning system specific circuit. In anembodiment, the apparatus specific circuit includes a radar specificcircuit. In an embodiment, the apparatus specific circuit includes acable or wireless modem specific circuit. In an embodiment, theapparatus specific circuit includes an optical fiber communicationsystem specific circuit. In an embodiment, the apparatus specificcircuit includes a wireless hub or base station specific circuit. In anembodiment, the apparatus specific circuit includes a cellularcommunications system specific circuit.

In an embodiment, the radio frequency signal processing pathway 2010includes a switch controller 2052 configured to operate an addressablerow switch of the first matrix of addressable row switches, anaddressable row switch of the second matrix of addressable row switches,or an individually addressable column switch of the at least twoindividually addressable column switches.

In an embodiment, the radio frequency signal processing pathway 2010includes a configuration manager 2054 configured to (i) receive arequest for a filter characteristic, and (ii) select settings of thefirst matrix of addressable row switches, of the second matrix ofaddressable row switches, or the at least two individually addressablecolumn switches implementing the requested filter characteristic. In anembodiment, the request for filter characteristic includes a request foran amplitude or phase response by the surface acoustic wave device. Inan embodiment, the request for filter characteristic includes a requestfor an arbitrary filter characteristic.

In an embodiment, the radio frequency signal processing pathway 2010includes an embedded signal processing pathway computer system 2058. Inan embodiment, the apparatus specific circuitry 2080 includes anembedded computer system 2082. In an embodiment, the radio frequencysignal processing pathway includes a receiver 2062 configured to receivea request for a filter characteristic.

All references cited herein are hereby incorporated by reference intheir entirety or to the extent their subject matter is not otherwiseinconsistent herewith.

In some embodiments, “configured” includes at least one of designed, setup, shaped, implemented, constructed, or adapted for at least one of aparticular purpose, application, or function.

It will be understood that, in general, terms used herein, andespecially in the appended claims, are generally intended as “open”terms. For example, the term “including” should be interpreted as“including but not limited to.” For example, the term “having” should beinterpreted as “having at least.” For example, the term “has” should beinterpreted as “having at least.” For example, the term “includes”should be interpreted as “includes but is not limited to,” etc. It willbe further understood that if a specific number of an introduced claimrecitation is intended, such an intent will be explicitly recited in theclaim, and in the absence of such recitation no such intent is present.For example, as an aid to understanding, the following appended claimsmay contain usage of introductory phrases such as “at least one” or “oneor more” to introduce claim recitations. However, the use of suchphrases should not be construed to imply that the introduction of aclaim recitation by the indefinite articles “a” or “an” limits anyparticular claim containing such introduced claim recitation toinventions containing only one such recitation, even when the same claimincludes the introductory phrases “one or more” or “at least one” andindefinite articles such as “a” or “an” (e.g., “a receiver” shouldtypically be interpreted to mean “at least one receiver”); the sameholds true for the use of definite articles used to introduce claimrecitations. In addition, even if a specific number of an introducedclaim recitation is explicitly recited, it will be recognized that suchrecitation should typically be interpreted to mean at least the recitednumber (e.g., the bare recitation of “at least two chambers,” or “aplurality of chambers,” without other modifiers, typically means atleast two chambers).

In those instances where a phrase such as “at least one of A, B, and C,”“at least one of A, B, or C,” or “an (item) selected from the groupconsisting of A, B, and C,” is used, in general such a construction isintended to be disjunctive (e.g., any of these phrases would include butnot be limited to systems that have A alone, B alone, C alone, A and Btogether, A and C together, B and C together, or A, B, and C together,and may further include more than one of A, B, or C, such as A₁, A₂, andC together, A, B₁, B₂, C₁, and C₂ together, or B₁ and B₂ together). Itwill be further understood that virtually any disjunctive word or phrasepresenting two or more alternative terms, whether in the description,claims, or drawings, should be understood to contemplate thepossibilities of including one of the terms, either of the terms, orboth terms. For example, the phrase “A or B” will be understood toinclude the possibilities of “A” or “B” or “A and B.”

The herein described aspects depict different components containedwithin, or connected with, different other components. It is to beunderstood that such depicted architectures are merely examples, andthat in fact many other architectures can be implemented which achievethe same functionality. In a conceptual sense, any arrangement ofcomponents to achieve the same functionality is effectively “associated”such that the desired functionality is achieved. Hence, any twocomponents herein combined to achieve a particular functionality can beseen as “associated with” each other such that the desired functionalityis achieved, irrespective of architectures or intermedial components.Likewise, any two components so associated can also be viewed as being“operably connected,” or “operably coupled,” to each other to achievethe desired functionality. Any two components capable of being soassociated can also be viewed as being “operably couplable” to eachother to achieve the desired functionality. Specific examples ofoperably couplable include but are not limited to physically mateable orphysically interacting components or wirelessly interactable orwirelessly interacting components.

With respect to the appended claims the recited operations therein maygenerally be performed in any order. Also, although various operationalflows are presented in a sequence(s), it should be understood that thevarious operations may be performed in other orders than those which areillustrated, or may be performed concurrently. Examples of suchalternate orderings may include overlapping, interleaved, interrupted,reordered, incremental, preparatory, supplemental, simultaneous,reverse, or other variant orderings, unless context dictates otherwise.Use of “Start,” “End,” “Stop,” or the like blocks in the block diagramsis not intended to indicate a limitation on the beginning or end of anyoperations or functions in the diagram. Such flowcharts or diagrams maybe incorporated into other flowcharts or diagrams where additionalfunctions are performed before or after the functions shown in thediagrams of this application. Furthermore, terms like “responsive to,”“related to,” or other past-tense adjectives are generally not intendedto exclude such variants, unless context dictates otherwise.

While various aspects and embodiments have been disclosed herein, otheraspects and embodiments will be apparent to those skilled in the art.The various aspects and embodiments disclosed herein are for purposes ofillustration and are not intended to be limiting, with the true scopeand spirit being indicated by the following claims.

What is claimed is:
 1. A surface acoustic wave device comprising: apiezoelectric substrate; an input electrode assembly; and an outputelectrode assembly; the input electrode assembly or the output electrodeassembly comprising a configurable electrode assembly, the configurableelectrode assembly including: a plurality of spaced-apart elongatedelectrode sub-elements electromechanically coupled with thepiezoelectric substrate; a first signal bus proximate to and crossingeach electrode sub-element of the plurality of electrode sub-elements,and electrically isolated therefrom; a first matrix of addressableswitches, each addressable switch of the first matrix configured toelectrically couple a respective electrode sub-element of the pluralityof electrode sub-elements with the first signal bus; a second signal busproximate to and crossing each electrode sub-element of the plurality ofelectrode sub-elements, and electrically isolated therefrom; and asecond matrix of addressable switches, each addressable switch of thesecond matrix configured to electrically couple a respective electrodesub-element of the plurality of electrode sub-elements with the secondsignal bus.
 2. The surface acoustic wave device of claim 1, wherein thefirst signal bus crosses each of the plurality of electrode elements. 3.The surface acoustic wave device of claim 1, wherein the second signalbus crosses each of the plurality of electrode elements.
 4. The surfaceacoustic wave device of claim 1, wherein the plurality of sub-elementseach have a width of less than λ/8 (where the surface acousticwavelength λ=acoustic wave velocity V_(SAW)/center frequency f₀ of thedevice).
 5. The surface acoustic wave device of claim 1, wherein theplurality of sub-elements are arranged in a transverse orientation. 6.The surface acoustic wave device of claim 1, wherein, if the inputelectrode assembly includes the configurable electrode assembly, if thefirst signal bus is electrically coupled to a first selection of atleast two adjacent electrode sub-elements of the plurality of electrodesub-elements by the respective addressable switches of the first set,and if the second signal bus is electrically coupled to a secondselection of at least two adjacent electrode sub-elements of theplurality of electrode sub-elements by the respective addressableswitches of the second matrix, the second selection of at least twoadjacent electrode sub-elements not including any members of the firstselection of at least two adjacent electrode sub-elements, the inputelectrode assembly is configured in response to a signal applied acrossthe first signal bus and the second signal bus to initiate surface waveson the piezoelectric substrate having amplitude or phase characteristicsthat are a function of the first selection of at least two adjacentelectrode sub-elements and the second selection of at least two adjacentelectrode sub-elements.
 7. The surface acoustic wave device of claim 6,wherein each finger defined by the first selection of at least twoadjacent electrode sub-elements is transversely separated from eachfinger defined by the second selection of at least two adjacentelectrode sub-elements by a selected transverse distance.
 8. The surfaceacoustic wave device of claim 1, wherein, if the output electrodeassembly includes the configurable electrode assembly, if the firstsignal bus is electrically coupled to a first selection at least twoadjacent electrode sub-elements of the plurality of electrodesub-elements by the respective addressable switches of the first outputset, and if the second signal bus is electrically coupled to a secondselection of at least two adjacent electrode sub-elements of theplurality of electrode sub-elements by the respective addressableswitches of the second output set, the second selection of at least twoadjacent electrode sub-elements not including any members of the firstselection of at least two adjacent electrode sub-elements and separatedfrom the first selection of at least two adjacent input electrodesub-elements by a selected transverse distance, the output electrodeassembly is configured to receive a surface acoustic wave initiated bythe input electrode assembly and generate an electrical signal inresponse thereto across the first signal bus and the second signal bus.9. The surface acoustic wave device of claim 8, wherein the generatedelectrical signal has amplitude or phase characteristics that are afunction of the first selection of at least two adjacent electrodesub-elements and the second selection of at least two adjacent electrodesub-elements.
 10. The surface acoustic wave device of claim 1, wherein alength to width ratio of each of the plurality of electrode sub-elementsis greater than 10:1.
 11. The surface acoustic wave device of claim 1,wherein the plurality of elongated electrode sub-elements are eachrespectively transversely spaced-apart a distance of less than λ/16. 12.The surface acoustic wave device of claim 1, wherein a switch of thefirst matrix of addressable switches or the second matrix of addressableswitches includes a semiconductor switch.
 13. The surface acoustic wavedevice of claim 1, wherein the switches of the first matrix ofaddressable switches and the second matrix of addressable switches areincluded in a device having addressable memory elements, eachaddressable memory element configured to electrically couple arespective electrode sub-element with the first signal bus or the secondsignal bus.
 14. The surface acoustic wave device of claim 1, wherein anaddressable switch of the first matrix of addressable switches or thesecond matrix of addressable switches includes a one-time programmableswitch.
 15. The surface acoustic wave device of claim 1, wherein anaddressable switch of the first matrix of addressable switches or thesecond matrix of addressable switches includes a programmable switch.16. The surface acoustic wave device of claim 1, wherein an addressableswitch of the first matrix of addressable switches or the second matrixof addressable switches includes a MEMS device.
 17. The surface acousticwave device of claim 1, wherein the addressable switches of the firstmatrix of addressable switches or the second matrix of addressableswitches are addressed using separate lines.
 18. The surface acousticwave device of claim 1, wherein the first matrix of addressable switchesand the second matrix of addressable switches are configured to becollectively switched between a first arbitrary state and a secondarbitrary state in less than one-tenth of a second.
 19. The surfaceacoustic wave device of claim 1, wherein the configurable electrodeassembly includes a reconfigurable electrode assembly.
 20. The surfaceacoustic wave device of claim 1, wherein the configurable electrodeassembly includes a one-time configurable electrode assembly.
 21. Thesurface acoustic wave device of claim 1, wherein the configurableelectrode assembly further includes: a third signal bus crossing eachelectrode sub-element of the plurality of electrode sub-elements andelectrically isolated therefrom; and a third-matrix of individuallyaddressable switches, each addressable switch of the third-matrixconfigured to electrically couple a respective electrode sub-element ofthe plurality of electrode sub-elements with the third signal bus. 22.The surface acoustic wave device of claim 1, wherein the device furtherincludes: a switch controller configured to operate an addressableswitch of the first matrix of addressable switches and an addressableswitch of the second matrix of addressable switches.
 23. The surfaceacoustic wave device of claim 22, wherein the switch controller isconfigured to operate an addressable switch of the first matrix ofaddressable switches and an addressable switch of the second matrix ofaddressable switches in response to signal specifying switch settingsselected to implement a requested device characteristic.
 24. The surfaceacoustic wave device of claim 1, wherein the device includes: aconfiguration manager configured to (i) receive a request for anacoustic wave device characteristic, and (ii) select settings of thefirst and second matrices of addressable switches of the configurableelectrode assembly implementing the requested device characteristic. 25.The surface acoustic wave device of claim 24, wherein the configurationmanager is configured to select the settings in response to a modeledinteraction of the electrode sub-elements.
 26. The surface acoustic wavedevice of claim 24, wherein the configuration manager is configured toselect the settings in response to a measured interaction of theelectrode sub-elements.
 27. The surface acoustic wave device of claim24, wherein the configuration manager is configured to select thesettings in response to a measured characteristic of the surfaceacoustic wave device.
 28. The surface acoustic wave device of claim 24,wherein the (ii) select settings includes select the settings inresponse to a feedback loop monitoring a performance by the configurableelectrode assembly with respect to the requested device characteristics,implementing a change in the settings of the first and second matricesof addressable switches in response to the monitored performance, andthen evaluating the performance by the configurable electrode assemblywith the changed settings with respect to the requested devicecharacteristics.
 29. The surface acoustic wave device of claim 1,further comprising: a receiver configured to receive a request for theacoustic wave device characteristic.
 30. An apparatus comprising: aradio frequency interface configured to receive or transmit radiofrequency signals on a plurality of channels; a radio frequency signalprocessing pathway comprising: a configurable surface acoustic wavedevice configured to filter radio frequency signals on at least twochannels of the plurality of channels and comprising: a piezoelectricsubstrate; an input electrode assembly; and an output electrodeassembly; wherein the input electrode assembly or the output electrodeassembly comprise a configurable electrode assembly, the configurableelectrode assembly including: a plurality of spaced-apart elongatedelectrode sub-elements electromechanically coupled with thepiezoelectric substrate; a first signal bus proximate to and crossingeach electrode sub-element of the plurality of electrode sub-elements,and electrically isolated therefrom; a first matrix of addressableswitches, each addressable switch of the first matrix configured toelectrically couple a respective electrode sub-element of the pluralityof electrode sub-elements with the first signal bus; a second signal busproximate to and crossing each electrode sub-element of the plurality ofelectrode sub-elements, and electrically isolated therefrom; and asecond matrix of addressable switches, each addressable switch of thesecond matrix configured to electrically couple a respective electrodesub-element of the plurality of electrode sub-elements with the secondsignal bus; and an apparatus specific circuit.
 31. The apparatus ofclaim 30, wherein the configurable surface acoustic wave device isconfigured to filter or delay radio frequency signals on at least twochannels of the plurality of channels.
 32. The apparatus of claim 30,wherein the radio frequency signal processing pathway includes a firstconfigurable surface acoustic wave device configured to filter or delayradio frequency signals on at least a first two channels of theplurality of channels and a second configurable surface acoustic wavedevice configured to filter or delay radio frequency signals on at leasta second two channels of the plurality of channels.
 33. The apparatus ofclaim 30, wherein the radio frequency signal processing pathway furthercomprises: a switch controller coupled to an addressable switch of thefirst matrix of addressable switches and an addressable switch of thesecond matrix of addressable switches of the configurable electrodeassembly.
 34. The apparatus of claim 30, wherein the radio frequencysignal processing pathway further comprises: a configuration managerconfigured to (i) receive a request for an acoustic wave devicecharacteristic, and (ii) select settings of the first and secondmatrices of addressable switches of the configurable electrode assemblyimplementing the requested device characteristic.
 35. The apparatus ofclaim 30, wherein the radio frequency signal processing pathway furthercomprising: a receiver configured to receive a request for an acousticwave device characteristic.
 36. A surface acoustic wave devicecomprising: a piezoelectric substrate; an input electrode assemblyincluding: a plurality of spaced-apart elongated input electrodesub-elements electromechanically coupled with the piezoelectricsubstrate; a first input signal bus proximate to and crossing each inputelectrode sub-element of the plurality of input electrode sub-elements,and electrically isolated therefrom; a first input-matrix of addressableswitches, each addressable switch of the first input-matrix configuredto electrically couple a respective input electrode sub-element of theplurality of input electrode sub-elements with the first input signalbus; a second input signal bus proximate to and crossing each inputelectrode sub-element of the plurality of input electrode sub-elements,and electrically isolated therefrom; and a second input-matrix ofaddressable switches, each addressable switch of the second input-matrixconfigured to electrically couple a respective input electrodesub-element of the plurality of input electrode sub-elements with thesecond input signal bus; and an output electrode assembly including: aplurality of spaced-apart elongated output electrode sub-elementselectromechanically coupled with the piezoelectric substrate; a firstoutput signal bus proximate to and crossing each output electrodesub-element of the plurality of output electrode sub-elements, andelectrically isolated therefrom; a first output-matrix of addressableswitches, each addressable switch of the first output-matrix configuredto electrically couple a respective output electrode sub-element of theplurality of output electrode sub-elements with the first output signalbus; a second output signal bus proximate to and crossing each outputelectrode sub-element of the plurality of output electrode sub-elements,and electrically isolated therefrom; and a second output-matrix ofaddressable switches, each addressable switch of the secondoutput-matrix configured to electrically couple a respective outputelectrode sub-element of the plurality of input electrode sub-elementswith the second output signal bus.
 37. The surface acoustic wave deviceof claim 36, wherein the plurality of input sub-elements are eachrespectively transversely spaced-apart a distance of less than λ/16. 38.The surface acoustic wave device of claim 36, wherein the plurality ofoutput sub-elements are each respectively transversely spaced-apart adistance of less than λ/16.
 39. The surface acoustic wave device ofclaim 36, wherein, if the first input signal bus is electrically coupledto a first selection of at least two adjacent input electrodesub-elements of the plurality of input electrode sub-elements by therespective addressable switches of the first input-matrix, and if thesecond input bus is electrically coupled to a second selection of atleast two adjacent input electrode sub-elements of the plurality ofinput electrode sub-elements by the respective addressable switches ofthe second input-matrix, the second selection of at least two adjacentinput electrode sub-elements not including any members of the firstselection of at least two adjacent input electrode sub-elements, theinput electrode assembly is configured to initiate a surface wave on thepiezoelectric substrate in response to a signal applied across the firstinput signal bus and the second input signal bus.
 40. The surfaceacoustic wave device of claim 36, wherein, if the first output signalbus is electrically coupled to a first selection at least two adjacentoutput electrode sub-elements of the plurality of output electrodesub-elements by the respective addressable switches of the firstoutput-matrix, and if the second output signal bus is electricallycoupled to a second selection of at least two adjacent output electrodesub-elements of the plurality of output electrode sub-elements by therespective addressable switches of the second output-matrix, the secondselection of at least two adjacent output electrode sub-elements notincluding any members of the first selection of at least two adjacentoutput electrode sub-elements, the output electrode assembly isconfigured to receive a surface wave initiated by the input electrodeassembly and generate an electrical signal in response thereto acrossthe first output signal bus and the second output signal bus.
 41. Asurface acoustic wave device comprising: a piezoelectric substrate; aninput electrode assembly; and an output electrode assembly; the inputelectrode assembly or the output electrode assembly comprising aconfigurable electrode assembly, the configurable electrode assemblyincluding: a plurality of spaced-apart elongated electrode sub-elementselectromechanically coupled with the piezoelectric substrate, whereinthe plurality of elongated electrode sub-elements are each respectivelytransversely spaced-apart a distance of less than λ/16; a first signalbus proximate to each electrode sub-element of the plurality ofelectrode sub-elements, and electrically isolated therefrom; a firstmatrix of addressable switches, each addressable switch of the firstmatrix configured to electrically couple a respective electrodesub-element of the plurality of electrode sub-elements with the firstsignal bus; a second signal bus proximate to each electrode sub-elementof the plurality of electrode sub-elements, and electrically isolatedtherefrom; and a second matrix of addressable switches, each addressableswitch of the second matrix configured to electrically couple arespective electrode sub-element of the plurality of electrodesub-elements with the second signal bus.
 42. A surface acoustic wavedevice comprising: a piezoelectric substrate; an input electrodeassembly including: a plurality of spaced-apart elongated inputelectrode sub-elements electromechanically coupled with thepiezoelectric substrate; a first input signal bus proximate to eachinput electrode sub-element of the plurality of input electrodesub-elements, and electrically isolated therefrom; a first input-matrixof addressable switches, each addressable switch of the firstinput-matrix configured to electrically couple a respective inputelectrode sub-element of the plurality of input electrode sub-elementswith the first input signal bus; a second input signal bus proximate toeach input electrode sub-element of the plurality of input electrodesub-elements, and electrically isolated therefrom; and a secondinput-matrix of addressable switches, each addressable switch of thesecond input-matrix configured to electrically couple a respective inputelectrode sub-element of the plurality of input electrode sub-elementswith the second input signal bus; and an output electrode assemblyincluding: a plurality of spaced-apart elongated output electrodesub-elements electromechanically coupled with the piezoelectricsubstrate; a first output signal bus proximate to each output electrodesub-element of the plurality of output electrode sub-elements, andelectrically isolated therefrom; a first output-matrix of addressableswitches, each addressable switch of the first output-matrix configuredto electrically couple a respective output electrode sub-element of theplurality of output electrode sub-elements with the first output signalbus; a second output signal bus proximate to each output electrodesub-element of the plurality of output electrode sub-elements, andelectrically isolated therefrom; and a second output-matrix ofaddressable switches, each addressable switch of the secondoutput-matrix configured to electrically couple a respective outputelectrode sub-element of the plurality of input electrode sub-elementswith the second output signal bus, wherein at least one of the pluralityof input sub-elements and the plurality of output sub-elements are eachrespectively transversely spaced-apart a distance of less than λ/16.